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Junior-Sized Supernova Discovered By New York Teen

Matt_dk writes "In November 2008, Caroline Moore, a 14-year-old student from upstate New York, discovered a supernova in a nearby galaxy, making her the youngest person ever to do so. Additional observations determined that the object, called SN 2008ha, is a new type of stellar explosion, 1000 times more powerful than a nova but 1000 times less powerful than a supernova. Astronomers say that it may be the weakest supernova ever seen."

154 comments

  1. If it's anything like my old Chevy Nova... by GreatAntibob · · Score: 1, Funny

    It'll light up the night sky.

    1. Re:If it's anything like my old Chevy Nova... by ChefInnocent · · Score: 2, Funny

      Is that because you torched it in anger after it "no va"?

    2. Re:If it's anything like my old Chevy Nova... by SgtChaireBourne · · Score: 1, Insightful

      A note on geography: upstate New York is not NYC. It's the rest of the state, some of it is far enough away from the light polution that there is a chance see stars. There's small chance of seeing even the moon, let alone the milkyway in any major US city.

      It's a shame. There's no good reason we have to spend good money shining light up into the sky, rather than keeping it on the ground where we paid for it to be. In a lot of areas a good case could be made to put the streetlights on timers and cut out after 11pm or midnight.

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    3. Re:If it's anything like my old Chevy Nova... by GreatAntibob · · Score: 0

      Wow, no love for the Futurama reference. Ok.

    4. Re:If it's anything like my old Chevy Nova... by Anonymous Coward · · Score: 1, Funny

      I live in NYC. One of my friends claims I live "upstate" because I live north of 96th St.

    5. Re:If it's anything like my old Chevy Nova... by amicusNYCL · · Score: 2, Insightful

      There's small chance of seeing even the moon, let alone the milkyway [cosmosmagazine.com] in any major US city.

      Huh? Which city have you been to where the ambient light pollution is brighter than the moon?

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    6. Re:If it's anything like my old Chevy Nova... by verbalcontract · · Score: 1

      Did this kid discover the supernova by recklessly smacking his principal's telescope? Because I think I've seen that before.

    7. Re:If it's anything like my old Chevy Nova... by Gilmoure · · Score: 1

      Had the fuel line nicked by the fan blade on my '72 RS Nova. Happened just as I pulled up to a 7-11. All this white mist/smoke came out from under the hood, I turned off the car, got out and opened up the hood.

      Whoosh!

      Nothing like nice cloud of fuel suddenly igniting. It burned itself out but I was enough to fry my eye brows/eye lashes.

      So yeah, Nova's can be kinda' bright. Not so much the drivers, though.

      --
      I drank what? -- Socrates
    8. Re:If it's anything like my old Chevy Nova... by Tablizer · · Score: 1

      It'll light up the night sky.

      Finally, the flying car promised by sci-fi is here! Just a few minor kinks to work out.
         

    9. Re:If it's anything like my old Chevy Nova... by TheoMurpse · · Score: 1

      Indeed. Adirondack Park in upstate NY looks to be about 20% of the entire state's surface area.

    10. Re:If it's anything like my old Chevy Nova... by Chris+Burke · · Score: 2, Funny

      Huh? Which city have you been to where the ambient light pollution is brighter than the moon?

      He probably lives in LA, where it's not a matter of the light pollution being brighter than the moon, but of the moon not being bright enough to penetrate the smog. Ask a 1st Grader what color the sky is, and they'll enthusiastically answer "brown!"

      --

      The enemies of Democracy are
    11. Re:If it's anything like my old Chevy Nova... by ArcadeNut · · Score: 1

      Vegas? :)

      --
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    12. Re:If it's anything like my old Chevy Nova... by SL+Baur · · Score: 1

      Which city have you been to where the ambient light pollution is brighter than the moon?

      Central Tokyo comes pretty close.

    13. Re:If it's anything like my old Chevy Nova... by amicusNYCL · · Score: 1

      That would probably be the only one that makes sense, I would bet that the light pollution in central Tokyo is among the worst in the world, I can't seem to find any rankings. But even there I would imagine that you could still see the moon. Still, the GP claimed this:

      There's small chance of seeing even the moon, let alone the milkyway in any major US city.

      There's no way that's true, there's not a single US city (let alone "any major" US city) where you can't see the moon because of light pollution.

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
  2. It's misquoted by ErikTheRed · · Score: 4, Funny

    Astronomers say that it may be the weakest supernova ever seen.

    What actually happened is that the astronomers were told that a 14-year-old child found a supernova that they'd all missed, and they groaned "Oh, that's weak!"

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    1. Re:It's misquoted by KevinKnSC · · Score: 5, Funny

      It bothers me that /. editors missed the obvious headline "Junior-Sized Supernova Discovered by Junior-Sized Astronomer."

    2. Re:It's misquoted by cdpage · · Score: 1

      Mod +1

    3. Re:It's misquoted by Anonymous Coward · · Score: 0

      that sounds a little too Farky

    4. Re:It's misquoted by Anonymous Coward · · Score: 0

      This is in the U.S., land of the Whopper and the Big Mac. Just because he's 14 doesn't mean he's junior-sized.

    5. Re:It's misquoted by alexj33 · · Score: 2, Insightful

      Or male. Didn't any of you read the post?

    6. Re:It's misquoted by steelfood · · Score: 1

      As opposed to super-sized astronomers finding supernovas?

      --
      "If a nation expects to be ignorant and free in a state of civilization, it expects what never was and never will be."
    7. Re:It's misquoted by krenshala · · Score: 1

      You do realize what website this is, don't you?

      --

      krenshala

  3. No light pollution there by the_arrow · · Score: 3, Interesting

    It seems like this kid didn't have to worry about light pollution.

    --
    / The Arrow
    "How lovely you are. So lovely in my straightjacket..." - Nny
    1. Re:No light pollution there by Enleth · · Score: 0

      That's because she was using a telescope - even a small one negates the problem. Just like observing the sky from the bottom of a well. Standing in a 10m-deep well in the middle of a bright day you will see a piece of night sky, with stars and all, when you look up (well, except when you're on the equator and it's exactly the midday, but that's a corner case of sorts).

      It's still very likely that the night sky around where she lives is too polluted with light to see anything interesting with the naked eye.

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    2. Re:No light pollution there by bhagwad · · Score: 1

      Yeah, that's surprising. I wonder how she was able to do that. Was she in a really dark area, or did she go out on a trip to stargaze? I know you can't see jackshit when you're surrounded by light no matter what telescope you're using.
      Also, I'd like to know whether she actually SAW the transition happen, or did she notice something that wasn't there a few days ago? And then when she knew that something was different, did she call someone? Tell the papers? Tell her parents? (who must also need to know something about astronomy and give a shit).
      Basically how did all this happen exactly?

    3. Re:No light pollution there by bloosqr · · Score: 2, Informative

      Your post got me curious if this was true or not (whether looking from the botttom of a well would allow one to see stars) as its much more intuitive to have the lens be the primary mechanism for telescope than simply the tube. I don't think it is. Snopes actually has an article on whether this is true and under what conditions could one even hypothesize it is true:

      http://www.snopes.com/science/well.asp

    4. Re:No light pollution there by literaldeluxe · · Score: 3, Insightful

      Standing in a 10m-deep well in the middle of a bright day you will see a piece of night sky, with stars and all, when you look up

      I have trouble believing that. Light scatters in the atmosphere; it's not just coming at you in straight lines from each source. Standing in a well doesn't change the fact that the bright, scattered light from the sun or terrestrial sources will reach your eyes and make it impossible to see faint objects. Reducing the amount of peripheral, direct light will improve the situation, but I doubt it will have enough of an impact to be noticeable, and certainly not enough to see "night sky, with stars and all" on a sunny day.

    5. Re:No light pollution there by bhagwad · · Score: 1

      I'm pretty sure you cannot see "a piece of the night sky" from the bottom of a well during the day.

      This is because the air molecules scatter the light all over and send them to your retina making your pupil constrict and reduce sensitivity so that you can't see the stars as well as make the background bright providing no contrast

      In case I'm wrong here, can you provide any reference for the statement you make? AFAIK, you cannot see any stars when there is ambient light no matter what tunnel you look through

    6. Re:No light pollution there by Anonymous Coward · · Score: 0

      your sig + your post = irony

    7. Re:No light pollution there by Anonymous Coward · · Score: 1, Informative

      What in the holy hell are you blathering about? The daytime sky is blue regardless of whether or not you're looking at it through a tube. OK, maybe if your telescope is about 100km long so it sticks right out of the atmosphere and is air tight so you can maintain a vacuum inside. The color comes from the sunlight scattered by the air itself, and there's a lot of it between yourself and outer space so the brightness of this scattered sunlight is sufficient to drown out any stars and planets, with the occasional exception of Venus.

    8. Re:No light pollution there by Gerzel · · Score: 1

      Telescopes don't negate the problem but they do help to lessen it to a certain extent.

    9. Re:No light pollution there by Darth_brooks · · Score: 3, Informative

      That's because she was using a telescope - even a small one negates the problem. Just like observing the sky from the bottom of a well. Standing in a 10m-deep well in the middle of a bright day you will see a piece of night sky, with stars and all, when you look up (well, except when you're on the equator and it's exactly the midday, but that's a corner case of sorts).

      [[citation needed]]

      Standing at the bottom of a well doesn't magically make the sky dark at midday. Other than a few very bright objects (Venus, maybe Jupiter, maybe the ISS, if it happens to path over the small swatch of sky you could see), I strongly doubt that you'll see anything other than blue sky. I've yet to read a convincing argument (or better, see a convincing picture) that proves the "bottom of a well" hypothesis any better than the "airplane on a treadmill" problem.

      The closest explanation I've heard would be that, when viewing at dusk, your eyes would be better adjusted to the low-light conditions, since you've presumably been standing at the bottom of a dark well for a while. Which isn't that much more useful to anyone (short of maybe unwilling friends of Jame Gumb) than sitting in a dark room before going outside.

      Also, please explain how using a telescope magically invalidates light pollution. If I follow your line of reasoning, I should be able to use a pair of binoculars to get a crystal clear view out of a dirty window.

      --
      There are some people that if they don't know, you can't tell 'em.
    10. Re:No light pollution there by SkyDude · · Score: 4, Funny

      I'm thinking that you may see stars if you've just arrived at the bottom of a well, but they won't be in the sky. You may also hear bells, birds and a lot of wincing.

      --
      == First cross river, then insult alligator.
    11. Re:No light pollution there by Anonymous Coward · · Score: 1, Funny

      What? All I see at the bottom of a well is a bucket and this damn lotion.

    12. Re:No light pollution there by value_added · · Score: 4, Funny

      Or possibly the sound of someone mumbling something about lotion.

    13. Re:No light pollution there by interkin3tic · · Score: 1

      It seems like this kid didn't have to worry about light pollution.

      She didn't have to worry about heavy pollution either!

      (cricket noises)

    14. Re:No light pollution there by Deadstick · · Score: 2, Interesting
      0 for 2.

      First, the "bottom of a well" story is false. Some discussion here: http://www.astronomycafe.net/qadir/q241.html as well as at snopes. Got a piece of pipe? Try it for yourself.

      Second, light pollution of the night sky is a massive problem for astronomers. The lights of Los Angeles reduced the Griffith Observatory to a tourist attraction, and the city of San Diego spent a bucket of money on shielded lighting to mitigate what it was doing to the Palomar installation.

      rj

    15. Re:No light pollution there by oldspewey · · Score: 1

      Actually to be completely pedantic, I don't necessarily think you'd need to maintain vacuum inside the tube if it were 100km long. Just so long as sunlight weren't entering the tube directly there would be no scattering effect that you'd have to peer through.

      --
      If libertarians are so opposed to effective government, why don't they all move to Somalia?
    16. Re:No light pollution there by spiffmastercow · · Score: 1

      That's because it wasn't in the milky way! The post you linked to says nothing about OTHER galaxies!

    17. Re:No light pollution there by SlashDev · · Score: 1

      Light pollution is caused by light emitted from Earth, while mid-day light is caused by the sun hitting the earth's atmosphere, which is why you won't be seeing any stars standing at the bottom of a well in mid-day, doesn't matter how well adjusted your pupils are in the dark. If that were the case, looking through a 10m long telescope above ground, with your pupils adjusted to the dark, would yield the same result. Using a small telescope as opposed to a large one, is more beneficial in light polluted areas, since you will be receiving less light-pollution in the 'bucket', brightness of the object in question, remains the same, so the ratio of brightness/light pollution is higher, yielding a brighter image.

      --

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    18. Re:No light pollution there by Eternauta3k · · Score: 1

      Using a small telescope as opposed to a large one, is more beneficial in light polluted areas, since you will be receiving less light-pollution in the 'bucket', brightness of the object in question, remains the same, so the ratio of brightness/light pollution is higher, yielding a brighter image.

      Huh? Larger aperture means you get more light, both from the object and the sky.

      --
      Yeah. Would you choose a neurosurgeon who pokes around people's brains in his spare time? I wouldn't.
    19. Re:No light pollution there by ozbird · · Score: 1

      The world's oldest urban legend? From Aristotle, no less: http://www.snopes.com/science/well.asp

    20. Re:No light pollution there by selven · · Score: 1

      This is true. The reason why the entire sky is bright at daytime, rather than just the sun, is that the air refracts the light so when it gets to your eyes it is coming from all different directions, so you think the light source is everywhere. This will drown out anything but the moon and maybe satellites/Venus if you have good eyesight / equipment.

  4. supernova vs nova by fatp · · Score: 1

    supernova:nova = 1000000:1

    And things between wasn't discovered?

    The universe is wonderful.

    1. Re:supernova vs nova by mea37 · · Score: 3, Insightful

      Well, yes...

      The thing to realize is, in spite of their related names, a nova and a supernova are fundamentally different phenomena. They happen to have enough similarity (esp. in what's observed) to be named as though a "supernova" were just a nova only bigger, but that obscures huge differences in what's really going on.

      AFAIK, neither phenomenon would be expected to produce this kind of mid-range result. Possibly it's a different kind of event altogether. (Must... resist... LHC joke...)

    2. Re:supernova vs nova by Anonymous Coward · · Score: 0

      Good point.

      I'm still surprised, though, that thus far down the discussion, no one has managed to observe that this must have been a kilonova.

    3. Re:supernova vs nova by Chris+Burke · · Score: 1

      I'm still surprised, though, that thus far down the discussion, no one has managed to observe that this must have been a kilonova.

      Well "super" isn't an SI prefix, so it doesn't match.

      Since this is better than a regular nova, but not as cool as a supernova, I hereby suggest "neatonova".

      --

      The enemies of Democracy are
  5. So the weakest supernova to date ... by 0racle · · Score: 0

    ... was discovered by the weakest supernova discoverer to date.

    Neat.

    --
    "I use a Mac because I'm just better than you are."
  6. She got a raw deal... by jimbudncl · · Score: 3, Funny

    She discovered it and they didn't even name it after her??? Sue, Caroline, sue!

    1. Re:She got a raw deal... by Anonymous Coward · · Score: 0

      I agree - we've got Tycho's star and Kepler's star; this should be Moore's star

    2. Re:She got a raw deal... by Q-bert][ · · Score: 1

      They didn't even put her name on the paper, for shame!

  7. Neither Nova nor Supernova by ATestR · · Score: 1

    This is actually the first observed instance of a new class of objects... planets destroyed by Darth Vader's Death Star.

    --
    âoeAny society that would give up a little liberty to gain a little security will deserve neither and lose both.
    1. Re:Neither Nova nor Supernova by Mikkeles · · Score: 2, Funny

      No; that was in a galaxy, far, far away.

      This was in a nearby galaxy.

      --
      Great minds think alike; fools seldom differ.
    2. Re:Neither Nova nor Supernova by oodaloop · · Score: 1

      That's no supernova...

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    3. Re:Neither Nova nor Supernova by MozeeToby · · Score: 4, Funny

      Just another planet firing up their LHC, nothing to see here.

    4. Re:Neither Nova nor Supernova by kno3 · · Score: 1

      Hahahaha! Funniest wit I have heard all day, thank you good sir! If I had mod points you would get one.

    5. Re:Neither Nova nor Supernova by roman_mir · · Score: 1

      Just another planet firing up their LHC, nothing to see here.

      anymore...

  8. Sky coverage + Observing Time = Discoveries by AaronParsons · · Score: 3, Interesting

    The cool thing is that in astronomy, we're still miles from having full sky coverage 24/7. This means that even if you have a (relatively) small telescope, you can still see things the big ones can't just by looking somewhere no one else is at a particular time.

    I wish they described how the discovered got funneled up to the supernova scientists on the paper published on it. She must have been with someone who really knew that the "new star" she saw there wasn't supposed to be there, and that person deserves some credit, too!

    1. Re:Sky coverage + Observing Time = Discoveries by dword · · Score: 1

      She just pointed the telescope at the sky and waited long enough. I believe that if you wait enough, you're bound to seeing something unique because there's lots of stuff out there that only comes out every once in a while. This sounds like a crazy idea, so who would believe it, right? There must have been someone who understood that it was possible, someone with astronomy knowledge. That's who deserves some credit!

    2. Re:Sky coverage + Observing Time = Discoveries by thedonger · · Score: 0

      I wish they described how the discovered got funneled up to the supernova scientists on the paper published on it. She must have been with someone who really knew that the "new star" she saw there wasn't supposed to be there, and that person deserves some credit, too!

      Could be a new take on the over-bearing parent forcing the child to achieve: "Caroline, you will take credit for this astronomical discovery or it is right to bed with no dessert for you! Do you understand me?...No, I don't care if your father dragged you out against your will. College admissions will eat this story up...What? Well I have news for you: You love astronomy and you are going to college!"

      --
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    3. Re:Sky coverage + Observing Time = Discoveries by cwills · · Score: 5, Informative

      Within the amateur and professional astronomy circles there is a fairly wide known and standard method of reporting astronomical stuff (see http://www.cfa.harvard.edu/iau/cbat.html )

      Many deepsky objects (galaxies, nebulae, star clusters) become "well known friends" by amateur astronomers. For example, when ever I'm out observing I will usually do a quick peek at M13 in Hercules, M81, M82 in Ursa Major, or parts of the Veil nebulae in Cygnus when they are visible (just to name a few). I suspect if there was a new supernova in M81 or M82, there is a chance that I would "catch it" by noticing something "odd" (think of it like noticing a new pimple on a friends face). Once something "odd" is noticed, the next step would be to check recent and older photographs of that region. If it's suspected to be "new" then the information is submitted to the IAU Central Bureau for Astronomical Telegrams according to the instructions listed above. Usually the next step that happens is that the pros might get involved to verify the finding.

      There are "rules" on who discovers the object, based mainly on the chronological time that IAU receives the information. Co-discovery of the same object can happen, usually the cut-off is when the IAU sends out the notice that there is a potential new object. In other words, say that I notice a new brightness in M81, I record the information and at 10:15 GMT send it in to the IAU CBAT. Someone else also notices the same object and sends in the information at 10:30 GMT. There is a CBAT notice sent out to subscribers at 10:35 GMT. Any observation after 10:35 would not be considered a discovery.

      BTW if you go out to http://www.cfa.harvard.edu/iau/lists/RecentSupernovae.html and look for 2008ha, you will find that there where 2 other people who are listed as discoverers of the same supernova, and it looks like Caroline Moore has been "working" with the same folks because she is also listed with at least one of them on two other recent supernova discoveries.

    4. Re:Sky coverage + Observing Time = Discoveries by hcdejong · · Score: 5, Funny

      IAU Central Bureau for Astronomical Telegrams

      Telegrams?

      --- have found possible new celestial phenomenon - stop - proof sent as electronumerical photograph following this message - stop - hcdejong - ends
      - START teletype-mime-v1.0 - 00011110101 11010101010 101101 110 1110101 0110 1010 10101 0101 1

    5. Re:Sky coverage + Observing Time = Discoveries by ortholattice · · Score: 1

      I wish they described how the discovered got funneled up to the supernova scientists on the paper published on it. She must have been with someone who really knew that the "new star" she saw there wasn't supposed to be there, and that person deserves some credit, too!

      She shares the hobby with her dad. There's some more on that part of the story, along with a picture of her rig, here: http://www.areavoices.com/astrobob/?blog=37663

    6. Re:Sky coverage + Observing Time = Discoveries by fletchzip · · Score: 0

      That's interesting, the story is far less compelling if it turns out that Caroline works with a parent or other adult and has been credited on this discovery because her mentor(s) let her file the paperwork.

      We might see a batch of recording breaking discoveries as astronomers let their kids do the reporting.

    7. Re:Sky coverage + Observing Time = Discoveries by Kentari · · Score: 2, Interesting

      Indeed, she is working on Tim Puckett's search team. Tim Puckett is a very driven amateur supernova hunter who collaborates with a number of other observers, like Jack Newton, who is the other co-discoverer listed. They collect massive amounts of data each night with semi and full automatic telescopes Basically they don't have the time to sift through all of it. Hence they created a search team of amateurs looking through their data. Caroline was part of this search team. Tim Puckett and his team have discovered hundreds of supernovae so far and show no sign of stopping.

      She didn't spent hours on end in the dark staring through a telescope. She didn't put up her own supernova search (which is more or less impossible for a 14yo, due to the huge financial step you have to take and the amount of time it takes). She spent hours looking through images generated by automatic telescopes. It is great that she had the dedication to go through it but it isn't very hard. If you go through enough data it is certain you will find a supernova (I believe they find a supernova on 1 image out of 9000). The hard part is setting up a telescope to scan the sky, calibrate each image and present it to you.

      It does disservice to the "co-discoverers" to not mention them in the summary. Without them Caroline Moore likely wouldn't have had data to sift through. I don't know the exact story but the part of each discoverer is probably: Tim Puckett coordinates the supernova search program, Jack Newton made the discovery image and Caroline Moore noticed the supernova.

      References:
      Tim Puckett's website
      Jack Newton's website
      Caroline's story

      As a last note. The days of amateur supernova hunting are quite numbered. Two large professional telescopes with aim to provide close to 24 hour surveillance of the sky will come online in the comming years. LSST and PanStarrs will sweep the skies with large apertures, huge CCD camera's and an impressive field of view. When those projects are running amateurs will have to aim for the holes that aren't observed...

    8. Re:Sky coverage + Observing Time = Discoveries by cwills · · Score: 3, Insightful

      I'd give her a little more credit... I don't know all the details but reading the "Caroline's story" it does sound like she was capturing and processing the images herself (with some assistence in getting going and learning what to do). It might have been "Dad's" observatory and such.. but it still looks like she was doing the work. The co-discovery might simply have been the "hey let me check my data as well..".

      The setup that some of these SN hunters is fairly automated, they maintain a list of objects that they will check on a routine basis. A group of SN hunters will sometimes pool their resources, share lists, coordinate what objects they are going to check, etc. The scopes can be automated to jump from object to object, take some exposures, then move on to the next object. The processing of the exposures can be partially automated, but it still requires going through them to determine if it's real or an imaging artifict or a cosmic ray on the image. This used to be done by using an optical blink comparitor (an old school optical box set up where you can quickly flip from viewing one photographic plate to another)

      Anyway -- Kudos to Caroline. It's a fun hobby that has been keeping me busy since I was 12 and had access to a 10" Newtonian.

    9. Re:Sky coverage + Observing Time = Discoveries by Mjec · · Score: 1

      I believe they find a supernova on 1 image out of 9000

      You mean she looked at OVER 9000 IMAGES?

      --
      "But everyone should know everything." -markab
    10. Re:Sky coverage + Observing Time = Discoveries by Kentari · · Score: 1

      In the CBAT attached to Caroline's story it is stated clearly that the discovery image was taken by Jack Newton's telescope. The equipment owned by Carolina (and her family) isn't fit for an automated search. It doesn't rule out a manual search, but it is highly unlikely.

      I agree it is an amazing feat, but I just wish the summary gave credit where credit was due: to all co-discoverers.

  9. [transcript from Caroline's discovery] by jimbudncl · · Score: 1

    "Welcome to McUniverse, would you like to try a black hole sundae?"

    "No thanks, could I just have a junior super nova salad, to go?"

    "Would you like to biggie size that?"

    "....."

    1. Re:[transcript from Caroline's discovery] by Anonymous Coward · · Score: 1, Funny

      You get that joke off the 99 cent menu?

  10. It goes both ways! by dword · · Score: 4, Insightful

    Astronomers say that it may be the weakest supernova ever seen.

    Or the strongest nova..

    1. Re:It goes both ways! by Shark · · Score: 1

      This (hey, it's a citation), guy actually pointed out that it's not quite that way.

      --
      Mind the frickin' laser...
    2. Re:It goes both ways! by Tablizer · · Score: 1

      How about the Richter scale? "That nova was a 3,000,000 on the Richter scale! Hope nobody owns property in that neighborhood."
           

  11. Statement on Society by whisper_jeff · · Score: 0, Redundant

    "If a normal supernova is a nuclear bomb, then SN 2008ha is a bunker buster..."

    I find it kind of a sad statement on society that a scientist finds a comparison to weapons of war to be the best way to describe an event to people. It's a good analogy because it explains the situation well but it says a lot about society that that's the analogy-of-choice...

    1. Re:Statement on Society by LBArrettAnderson · · Score: 3, Insightful

      They're explosions... it only makes sense to relate to things that explode... most exploding things are weapons (and (super)nova).

    2. Re:Statement on Society by ijakings · · Score: 3, Funny

      I would much prefer a "How many Librarys of Congress can the explosion blow up" System. So for example this Nova can blow up 1000 times more librarys of congress than a regular Nova.

    3. Re:Statement on Society by OglinTatas · · Score: 1

      The analogy of choice is generally a car analogy. In this case they eschewed that for one more relevant, the largest explosion most humans can imagine. I suppose they could have chosen something like eruptions of mega volcanoes like Krakatoa, but even those are generally compared to nuclear bombs for scale.

    4. Re:Statement on Society by DNS-and-BIND · · Score: 1

      OK - how else would you make a close analogy to a massive nuclear explosion in space? Maybe use something that is, I don't know - similar? Oh, no, we can't have that, now everything is a sad commentary on society. Sir, I think it says more about your outlook that you always look for ways to find fault with others and then cluck your tongue reproachfully.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    5. Re:Statement on Society by Anonymous Coward · · Score: 1, Funny

      It's an explosion dumbass.

      Your tiger wants more tofu.

    6. Re:Statement on Society by Anonymous Coward · · Score: 0

      How about global warming factor?

      This supernova will cause sea levels to rise by XX feet.

    7. Re:Statement on Society by whisper_jeff · · Score: 1

      Alright, let me clarify since you seemed to miss the point - I find it sad that referencing a bunker buster in an analogy about an event in space is appropriate. I find it sad that the term "bunker buster" has been used sufficiently that the average person will immediately know what you're describing _and_ know enough about it to be able to envision it. As I said, the analogy works - it accurately portrays what they're trying to describe - but I find it unfortunate that we live in a world where "bunker buster" is part of the average person's lexicon. As for my outlook, you know nothing at all about what my outlook is or what I always look for. Thanks.

    8. Re:Statement on Society by themightythor · · Score: 1

      I was going to post that relating one type of explosion to another type is a good analogy, but was beaten to the punch. What I will ask is why are you complaining about it when you yourself admit that the analogy is a good one? Can you think of a better one?

    9. Re:Statement on Society by SBrach · · Score: 1

      Its a lion. You better study before the new episodes come out.

    10. Re:Statement on Society by 140Mandak262Jamuna · · Score: 1

      Yeah, the standard dumbing down units is how many football fields long or how many libraries of congress worth of information. Nuclear bombs? meh!

      --
      sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
    11. Re:Statement on Society by thedonger · · Score: 1

      OK - how else would you make a close analogy to a massive nuclear explosion in space?

      Kirstey Alley inside the Astrodome on an ice cream binge?

      --
      Help fight poverty: Punch a poor person.
    12. Re:Statement on Society by Deadstick · · Score: 1
      You wouldn't say "alittle", would you?

      Give it another year.

      rj

    13. Re:Statement on Society by iknowcss · · Score: 1

      Score: +1, Not over thinking it

      --
      Life is rarely fair. Cherish the moments when there is a right answer.
    14. Re:Statement on Society by Anonymous Coward · · Score: 0

      I find it kind of a sad statement on Slashdot that stupidity like this gets modded up.

    15. Re:Statement on Society by EdZ · · Score: 1

      average person

      This is Slashdot. 'Average people' don't come into it. Most Slashdotters could probably tell you the difference between a Teller-Ullam design and an Implosion Trigger, because high-energy physics is interesting, rather than because everyone has a desire to nuke everyone else.

  12. In other news... by srussia · · Score: 1

    North Korea Conducts New Nuke Test

    From TFA:The peculiar object effectively bridged the gap between a nova (a nuclear explosion on the surface of an old, compact star called a white dwarf) and a type Ia supernova (the destructive death of a white dwarf caused by a runaway nuclear reaction starting deep in the star). SN 2008ha likely was a failed supernova where the explosion was unable to destroy the entire star. âoeIf a normal supernova is a nuclear bomb, then SN 2008ha is a bunker buster,â said team leader Ryan Foley

    --
    Set your phasers on "funky"!
  13. Weakest Supernova? by kenp2002 · · Score: 2, Insightful

    Pet Peeve Alert:

    Weakest Supernova or STRONGEST NOVA?

    I'm mean seriously, a star exploding is a star exploding. Mario or Super Mario. He's still a fat plumber who eats shrooms...

    I bet if the highly paid scientists found it they'd be touting the "Strongest NOVA ever see discovered" where as some plucky kid finds it they're like "umm weakest Super nova ever...."

    Word play is fun...

    It is almost like asking "Is it an A- or a B+" or the musical types the whole sharp flat deal...

    --
    -=[ Who Is John Galt? ]=-
    1. Re:Weakest Supernova? by Anonymous Coward · · Score: 2, Informative

      No. A nova and a supernova are two completely distinct events, with the force of the resulting explosion being only the most obvious difference between the two. This was a small supernova. Google it or something.

    2. Re:Weakest Supernova? by kindbud · · Score: 4, Informative

      A supernova entails core collapse and results in the destruction of the star. A nova is an explosion occurring in the upper level of a star's atmosphere and does not destroy the star. Novas recur in a more or less cyclic fashion, supernovas never recur.

      --
      Edith Keeler Must Die
    3. Re:Weakest Supernova? by oldhack · · Score: 2, Insightful

      Isn't discovering the weakest more impressive than the strongest?

      --
      Fuck systemd. Fuck Redhat. Fuck Soylent, too. Wait, scratch the last one.
    4. Re:Weakest Supernova? by k.a.f. · · Score: 1
      Who modded this insightful?

      An A- is quite distinct from a B+. Neighbouring, but different. An f sharp is quite different from a g flat in function, and only sounds identical if your hearing is mediocre. A supernova and a nova work on quite different lines, and in fact there are several types of each. And please, resist the temptation of tagging this as "mininova"... it's most definitely either a maxinova, or else a mini-supernova.

      [obligatory lawn reference]

    5. Re:Weakest Supernova? by kenp2002 · · Score: 1

      I honestly don't know. Some days I am just in the mood to burn karma and I fail miserably. I was shooting for Funny actually.

      --
      -=[ Who Is John Galt? ]=-
    6. Re:Weakest Supernova? by kenp2002 · · Score: 1

      But it still goes boom right? Err wait no sound... well actually... no.. but there would be a pressure wave... no air to carry it... DAMN YOU SCI-FI CHANNEL!!

      --
      -=[ Who Is John Galt? ]=-
    7. Re:Weakest Supernova? by niktemadur · · Score: 1

      Weakest Supernova or STRONGEST NOVA?

      I'm mean seriously, a star exploding is a star exploding

      When you've seen one redwood, you've seen 'em all, eh?
      Here's a quote from the first article a Google search turned up: But if SN2008ha is a Type II supernova, where did the hydrogen go? The answer might be mass loss. Some stars are so massive and luminous that they lose their outer hydrogen layers in strong outflowing stellar winds. And because they're so massive, their cores collapse into a black hole without transfering energy to the outer layers of the star, which may explain the low luminosity of the explosion. I've never read anything quite like this before.

      The headline should have read along the lines of: Teen May Have Discovered Most Massive, Least Luminous Supernova

      --
      Lil' Thindime, lilting a lacrimose lament, krashes the kwaint konfines of Kokonino Kounty
    8. Re:Weakest Supernova? by Princeofcups · · Score: 1

      Pet Peeve Alert:

      Weakest Supernova or STRONGEST NOVA?

      I'm mean seriously, a star exploding is a star exploding.

      Nova and Super Nova are completely different phenomena. It is confusing that they are both called Nova, but that's the name they were given when they were just lights in the sky, and we didn't have proper models for what we were looking at.

      A nova is a white dwarf in a binary system that collects gas from the neighbor and occasionally blows it top. A supernova is a huge star collapsing down to a neutron star and releasing a lot of energy in the process.

      --
      The only thing worse than a Democrat is a Republican.
    9. Re:Weakest Supernova? by SlashDev · · Score: 1

      I disagree with your statement. A Supernova is the violent death of a star, a Nova is the sudden brightness of a star caused by a sudden temperature rise, the star itself doesn't die. At one point in history, Supernovas were thought to be brighter Novas (which is why it was name SuperNova), but that was proven to be wrong.

      --

      TOP DSLR Cameras Reviews of the top DSLRs
    10. Re:Weakest Supernova? by sFurbo · · Score: 2, Informative

      But they are different physical phenomenons, in the nova, only hydrogen burns, in a type Ia supernova, carbon burns (type Ia, Ic and II doesn't come from whote dwarves). So it makes sense to distinguish between powerful novae and weak supernovae, even if they can have the same luminosity.

    11. Re:Weakest Supernova? by kenp2002 · · Score: 1

      I disagree with your statement. A Supernova is the violent death of a star, a Nova is the sudden brightness of a star caused by a sudden temperature rise, the star itself doesn't die. At one point in history, Supernovas were thought to be brighter Novas (which is why it was name SuperNova), but that was proven to be wrong.

      As the discussions have rolled on the SuperNova is gone when complete, Nova still remain and may repeatedly go Nova again.

      I wonder where a magnatar falls into this mix...

      --
      -=[ Who Is John Galt? ]=-
    12. Re:Weakest Supernova? by kenp2002 · · Score: 1

      But they are different physical phenomenons, in the nova, only hydrogen burns, in a type Ia supernova, carbon burns (type Ia, Ic and II doesn't come from whote dwarves). So it makes sense to distinguish between powerful novae and weak supernovae, even if they can have the same luminosity.

      fair enough

      --
      -=[ Who Is John Galt? ]=-
    13. Re:Weakest Supernova? by Anonymous Coward · · Score: 1, Interesting

      FYI: A- and B+ were referring to grades, not music notes. B+ = [86 2/3, 90), A- = [90, 93 1/3), +/- rounding method used by the prof. In practice, the difference is usually "does the prof think you deserve an A or a B?"

      And as for music notes: your statement may be true in some systems like Pythagorean tuning. However, in the more common 12-TET system, F# and Gb are defined as the exact same note. Hint: The piano has 12 keys per octave; they're the integer values of 440 * 2^(n/12) Hz, with n=0 being middle A.

    14. Re:Weakest Supernova? by Tablizer · · Score: 1

      But doesn't the supernova's material often fall back inward, creating some kind of a smaller star, such as a neutron star or a black hole? Thus, something remains in either case. I remember reading that the diff between a nova and a supernova is that a super results in a black-hole, while a nova only results in a small star or a neutron star. Perhaps the theory of star blasts is still in progress.

    15. Re:Weakest Supernova? by Cytotoxic · · Score: 1

      Pet Peeve Alert:

      Weakest Supernova or STRONGEST NOVA?

      They can tell the difference between a Nova and a Supernova by the light curves. The two distinctly different events have different brightening curves as the explosion proceeds, so they can tell which one it is no matter how far away or how bright or dim, as long as they catch it early enough in the process.

    16. Re:Weakest Supernova? by Chris+Burke · · Score: 1

      But doesn't the supernova's material often fall back inward, creating some kind of a smaller star, such as a neutron star or a black hole? I remember reading that the diff between a nova and a supernova is that a super results in a black-hole, while a nova only results in a small star or a neutron star.

      Naw. A nova just involves an explosion due to rapid fusion of hydrogen on the surface of the star which still leaves the star intact. A supernova is the complete collapse of the core of a star when the star is running out of fuel and the energy created by fusion in the core is no longer enough to hold the rest of the star up (and subsequently much of the falling mass of the star rebounds off the super-compressed core and explodes outward). What remains after a supernova depends on the type and mass of the star, but both neutron stars and black holes are possibilities. Either way the star is essentially dead, most of its mass lost and what remains not being able to sustain fusion. With a nova, the star is still alive and well and likely to nova again and again.

      That's why there's the million-to-one ratio of intensity. Ones just a minor burst of surface material, the other is the star itself exploding.

      --

      The enemies of Democracy are
    17. Re:Weakest Supernova? by Anonymous Coward · · Score: 0

      You music example fails, whats the difference between E sharp and F flat, or B sharp and C flat? Just to be a musical nazi (hey that sounds kinda fun).

    18. Re:Weakest Supernova? by the_other_chewey · · Score: 1

      It is almost like asking "Is it an A- or a B+" or the musical types the whole sharp flat deal...

      n-sharp and (n+1)-flat are only the same in some quite specific tunings. Admittedly, those are the most widely used
      nowadays, but by no means the only ones. Have a look at musical tuning theories before you make fun of them.

    19. Re:Weakest Supernova? by kenp2002 · · Score: 1

      I am old enough where every AC\DC song sounds the same. Do you honestly think studying tuning theory is going to correct my musical bias? :) Hell at the rate I am going John Tesh and Ozzie will sound the same in a few years :)

      Anyways I am too old and cranky to become a music major at this age...

      --
      -=[ Who Is John Galt? ]=-
  14. Co(s)mic classification by Utilitygeek · · Score: 1

    If it's not quite a supernova, but more than a regular nova, does that make it a sidekick?

    1. Re:Co(s)mic classification by Intron · · Score: 1

      The correct name is "chevynova"

      --
      Intron: the portion of DNA which expresses nothing useful.
  15. Awesome by pluther · · Score: 4, Interesting

    While the article, and many commenters so far have remarked on the irony of the youngest amateur astronomer finding the smallest supernova, it's pretty remarkable that what she actually found was a completely new astronomical phenomenon.

    From what I understand, the mechanisms behind novae and supernovae are pretty well understood. But this is something new altogether. According to the article, they're not even sure it's an actual supernova. Nobody has ever seen this exact behavior in a star before. We're going to learn a lot from this, and it would be pretty damn remarkable even if the discoverer hadn't been a 14 year old amateur.

    --
    If the masses can keep you down, you're not the Ubermensch.
    1. Re:Awesome by Azghoul · · Score: 1

      As Gregg Easterbrook has been known to write, it's the massive explosions of an interstellar war.

    2. Re:Awesome by Anonymous Coward · · Score: 0

      You might mean that novae and supernovae have pretty established theories about what they are and how they work.

  16. Everything is relative by BlackPignouf · · Score: 0

    Astronomers say that it may be the weakest supernova ever seen

    With no clear boundary between nova and supernova, this could also be the strongest nova.
    Just like Australia being the biggest island : if it were bigger, it would be a continent....

    I hereby declare that I have the biggest weenie on earth. Anything bigger should be called a penis!

    1. Re:Everything is relative by Randle_Revar · · Score: 1

      Australia is a continent...

      This might be a Nova, or a Supernova, or something else, but in any case, nova and supernova work very differently - it is not just a matter of degree.

    2. Re:Everything is relative by Locke2005 · · Score: 1

      Agreed; calling this the "weakest supernova ever seen" is like giving out an award for the "world's tallest midget".

      --
      I've abandoned my search for truth; now I'm just looking for some useful delusions.
  17. Wow, that's pretty impressive! by Nerdposeur · · Score: 1, Funny

    ...for a girl.

    1. Re:Wow, that's pretty impressive! by NickyGotz22 · · Score: 2, Funny

      Next they'll wanna vote

      --
      Test me and I will chronicle your pain - The Archivist (Diablo 3)
    2. Re:Wow, that's pretty impressive! by ZarathustraDK · · Score: 1

      It will never pass, when did you last get taken seriously while in possession of a corona?

      --
      If you quote this signature there'll be 72 copies of Windows ME waiting for you in Heaven.
  18. I can do one better by T+Murphy · · Score: 1

    discovered a supernova in a nearby galaxy, making her the youngest person ever to do so

    She may be the youngest to find a supernova in another galaxy, but I'll do better yet by watching for the first supernova in our solar sytem. We'll see who's laughing then!

    1. Re:I can do one better by Convector · · Score: 1

      So what is your plan for getting a star that exceeds the Chandrasekhar mass limit into the Solar System? As in, a star that can actually undergo supernova, which our puny Sun cannot.

    2. Re:I can do one better by Tablizer · · Score: 1

      She may be the youngest to find a supernova in another galaxy, but I'll do better yet by watching for the first supernova in our solar system. We'll see who's laughing then!

      Just power up the ol' LHC...

         

  19. Sunohara by Delicious+Loli · · Score: 0, Offtopic

    That's right. The strongest girl discovering my supernova. That would be the strongest supernova.

  20. How telescopes "invalidate" light pollution, sorta by jeffb+(2.718) · · Score: 4, Informative

    Also, please explain how using a telescope magically invalidates light pollution. If I follow your line of reasoning, I should be able to use a pair of binoculars to get a crystal clear view out of a dirty window.

    You're right that the "bottom of a well" claim is bogus, but you miss the boat in this last paragraph.

    A telescope collects more light than the naked eye, and it also magnifies the image of what you're seeing. If you're looking at an extended object -- a nebula, a planet, or a patch of light-polluted sky -- this magnification spreads the object's light over a wider area, making it dimmer. Stars, though, are still effectively point sources, so they just look brighter.

    So, looking for stars in a light-polluted sky is easier with a telescope, because it makes the stars appear brighter relative to their background. With nebulae, comets, or other extended objects, especially where the object's apparent brightness doesn't exceed the sky's apparent brightness, the telescope doesn't help much at all.

    As for the binoculars and the dirty window, well, the dirt would be out-of-focus for the binoculars, so they might help a little. Mostly, though, the analogy is a poor fit. Light pollution is effectively radiating from clear sky, not blocking light as smog or clouds would do.

  21. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  22. Kilonova, Meganova by Captain+Spam · · Score: 3, Funny

    Additional observations determined that the object, called SN 2008ha, is a new type of stellar explosion, 1000 times more powerful than a nova but 1000 times less powerful than a supernova.

    Well, I'm glad to see celestial phenomena follow the metric system, at least. I propose we name this a kilonova and rename the supernova to a meganova.

    --
    Demanding constant attention will only lead to attention.
  23. New astronomic event label: by Anonymous Coward · · Score: 0

    Aboveaveragenova. or Supernova-Sidekick.

  24. Is she sure... by Drone69 · · Score: 0

    it was a supernova exploding when she waslooking through her, undoubtly pink, telescope? Or was her next door neighbor, Mr. Reamus, 'exploding' near his bedroom window?

  25. Re:Supernova Junior by aquatone282 · · Score: 1

    The Supernova Junior: now only $0.99 at Burger King

    I think Taco Bell beat them to it - at least it felt like a supernova in my bowel the last time I ate a Taco Bell product. . .

    --
    What?
  26. Not the same note? by professorguy · · Score: 1

    An f sharp is quite different from a g flat in function, and only sounds identical if your hearing is mediocre

    So if I hear middle F# (369.99 Hz) and middle Gb (369.99 Hz) as the same note (when middle C=261.63Hz), my hearing is mediocre?

    Wow, that's just... wow.

  27. to make an important contribution to by circletimessquare · · Score: 2, Insightful

    chemistry, physics, biochemistry, computer science, mathematics, etc.

    you need to slave almost your whole life, be at the top of your mental game, have tons of education under your belt, and you need extremely expensive instruments (well, not math)

    but to make an important contribution to astronomy, you just need to look up with a cheap introductory level hobbyist telescope available at walmart, and some passion

    that's amazing

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
    1. Re:to make an important contribution to by selven · · Score: 1

      and you need extremely expensive instruments (well, not math)

      A large portion of modern math is done with the aid of supercomputers.

  28. Intentionaly and with a computer, not a telescope by juggledean · · Score: 1

    Hearing that a 16 year old had found a supernova she pronounced "I could beat her".

  29. Slashdot is average. by justinlee37 · · Score: 0, Offtopic

    I hate to break it to you, but Slashdot gets more and more average all the time.

  30. Re:It's misquoted ... This is like, daily doubles. by davidsyes · · Score: 1

    "Teen diagnoses her own disease in science class":
    http://www.cnn.com/2009/HEALTH/06/11/teen.self.diagnosis/index.html

    "For eight years, Jessica Terry suffered from stomach pain so horrible, it brought her to her knees. The pain, along with diarrhea, vomiting and fever, made her so sick, she lost weight and often had to miss school.

    During a science class, Jessica Terry, 18, discovered a tell-tale granuloma in her own pathology slide.

    Her doctors, no matter how hard they tried, couldn't figure out the cause of Jessica's abdominal distress.

    Then one day in January, Terry, 18, figured it out on her own."

    Imagine the chagrin the various medical experts experienced when she inadvertently disproved numerous experts who misdiagnosed her...

    --
    Previously: "Linux... Toward the Sunrise..." Now: "Linux... Toward the-- No, now, part of Every Sunrise"
  31. I propose calling it... by jea6 · · Score: 1

    I propose calling it a giganova.

    --

    sarchasm: The gulf between the author of sarcastic wit and the person who doesn't get it.
  32. JJ by Anonymous Coward · · Score: 0

    Your nova throws off light like a girl.

  33. Perhaps he meant New Moon? by Animaether · · Score: 1

    It's very difficult to see the New Moon (most of the illumination of the thing being from 'Earth Shine'), especially when there's any light pollution.

  34. Re:How telescopes "invalidate" light pollution, so by Orphaze · · Score: 1

    So, looking for stars in a light-polluted sky is easier with a telescope, because it makes the stars appear brighter relative to their background.

    Is this a joke? Light pollution turns the sky an awful pink-ish gray from what would otherwise be black, zodiacal light notwithstanding. That being the case, how exactly would it be easier to see a point source of light against a lighter background versus a darker background? (The answer? It's not. In fact, astronomers often use the limiting magnitude of stars visible with the naked eye as a measure of light pollution. The more LP there is, the smaller number of stars you will be able to discern with the naked eye, even if you are dark adapted and standing at the bottom of a well.)

    With nebulae, comets, or other extended objects, especially where the object's apparent brightness doesn't exceed the sky's apparent brightness, the telescope doesn't help much at all.

    Ludicrous! This is clearly being spoken by a person who has never looked through a telescope in their entire life. The apparently brightness of *any* astronomical object, be it a galaxy such as M31, or a globular cluster like M13, is entirely a function of aperture when magnification is held constant. The views of the Orion Nebula through a 4 inch reflector at 100x will be eviscerated by the same 100x view through a 20 inch reflector. (And yes, I have looked through instruments of both size, though I own a 12 inch reflector personally.) For views of the planets we have enough brightness to work with that light pollution makes little difference, but for just about everything else, it can ruin the view. You can barely make out M81 and M82 here in suburbia, but 2 hours a way they jump out of the sky at you.

  35. Re:It's misquoted ... This is like, daily doubles. by Hurricane78 · · Score: 1

    If you go to doctors to get healed, you obviously live in a reality distortion.

    They are there to make money. If you are healthy, you will not come anymore, meaning they will not get any money.

    That's just how the system works. You get money for threating people. But it stops when you heal them.

    If you want real help, try an university clinic, where the geeks of the medical sector live, and they really gain respect from healing people.
    And learn as much as you can yourself.

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  36. Re:How telescopes "invalidate" light pollution, so by Anonymous Coward · · Score: 0

    Narrowband filters can also significantly reduce the effects of light pollution.

  37. Re:It's misquoted ... This is like, daily doubles. by RockDoctor · · Score: 0, Troll

    If you go to doctors to get healed, you obviously live in a reality distortion.

    They are there to make money. If you are healthy, you will not come anymore, meaning they will not get any money.

    That's just how the system works. You get money for threating people. But it stops when you heal them.

    Sounds to me like you've just given an excellent reason to move out of the society that you live in and into a more civilised one. Which would make you a pinko commie subversive fellow traveller. Probably gay too (amongst people who think that being a pinko commie subversive fellow traveller is a bad thing, many also think that being gay is a bad thing too, and so the irrelevant crime-by-association is alleged. I say this for parody.)

    But seriously, by casting aspersions that the society that you live in is not the "best of all things in the best of all possible worlds", you do lay yourself open to charges of Panglossian unpatriotism. If that worries you.

    BTW, it's "threatening", not "threating", assuming that you were trying to type in English. Oh, the mistakes I make trying to write in Russian ! Or Spanish.

    --
    Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
  38. Criminal by Chiindi · · Score: 1

    Who are this girls parents? why did they allow her to run wild in a neighboring galaxy?

  39. subjekt by G0N70 · · Score: 0

    WHAT DOES THE SCOUTER SAY ABOUT HIS POWERLEVEL??????????? "1000 times more powerful than a nova but 1000 times less powerful than a supernova" ITS OVER... wait, what?

    --
    (Score:0, Offtopic)
  40. Re:How telescopes "invalidate" light pollution, so by jeffb+(2.718) · · Score: 1

    So, looking for stars in a light-polluted sky is easier with a telescope, because it makes the stars appear brighter relative to their background.

    Is this a joke? Light pollution turns the sky an awful pink-ish gray from what would otherwise be black, zodiacal light notwithstanding. That being the case, how exactly would it be easier to see a point source of light against a lighter background versus a darker background?

    Looking for stars in a light-polluted sky is easier with a telescope than it is without a telescope, because the telescope increases the apparent brightness of the stars relative to the brightness of their background. I'm sorry that I wasn't repetitive enough to head off your rant. Looking for stars is easier in a non-light-polluted sky, of course, whether you're using a telescope or not.

    With nebulae, comets, or other extended objects, especially where the object's apparent brightness doesn't exceed the sky's apparent brightness, the telescope doesn't help much at all.

    Ludicrous! This is clearly being spoken by a person who has never looked through a telescope in their entire life.

    Heh. There's quite a bit more to telescopes than just "looking through" one. But even if that's all you're doing, you're overlooking a few very important points.

    The apparently brightness of *any* astronomical object, be it a galaxy such as M31, or a globular cluster like M13, is entirely a function of aperture when magnification is held constant. The views of the Orion Nebula through a 4 inch reflector at 100x will be eviscerated by the same 100x view through a 20 inch reflector. (And yes, I have looked through instruments of both size, though I own a 12 inch reflector personally.)

    Congratulations. You're obviously quite proud. Now, let's compare notes for these scopes against a polluted sky.

    Under a typically nasty suburban sky, light pollution might be something like 18 magnitudes per square arc-second. In other words, each square arc-second of sky sheds as much light on your eye as an 18th-magnitude star.

    The four-inch scope will collect something like 200 times as much light as a fully-dilated eye (100mm objective vs. 7mm pupil). At 100x, it will then spread that light across an angular area 100^2 times as large. An extended object -- a nebula, a distant galaxy, the sky itself -- will appear "100 times as large", but 50 times (just under four magnitudes) dimmer than what the naked eye sees. But stars will still be pinpoints (assuming good optics), and they will appear 200 times (almost six magnitudes) brighter. Thus, the telescope makes it easier to see dim stars against a light-polluted sky.

    With the 20-inch scope, you're collecting 25 times as much light as the 4-inch, 5000 times as much as the naked eye. Spread that over 10,000 times the area, and extended objects still appear slightly (less than one magnitude) dimmer than they do to the unaided eye, but stars are 5000 times (over 9 magnitudes) brighter.

    No matter what size telescope you use, 100x magnification "stretches the contrast" between extended and pointlike objects by 10,000 times, or ten magnitudes. (Within limits -- for a scope smaller than two inches you'd be exceeding the resolution limit of the optics, and for a scope larger than about 24", the exit pupil would be too big to get all the light into your eye.)

    Now, suppose you're looking for a faint nebula, comet, or other extended object. No matter how large your telescope, no matter the magnification, it's not going to change the contrast between that object and the background brightness of the sky. If the sky itself has a higher surface brightness than the object you're looking for, it's going to be really hard to spot that object, unless you can find filters that knock back the skyglow more than they darken your target.