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Venus To Transit the Sun In June, Not Again Until 2117

revealingheart writes with this quote from ScienceDaily: "On 5 and 6 June this year, millions of people around the world will be able to see Venus pass across the face of the Sun in what will be a once-in-a-lifetime experience. It will take Venus about six hours to complete its transit, appearing as a small black dot on the Sun's surface, in an event that will not happen again until 2117. ...Transits of Venus occur only on the very rare occasions when Venus and Earth are in a line with the Sun. At other times Venus passes below or above the Sun because the two orbits are at a slight angle to each other. Transits occur in pairs separated by eight years, with the gap between pairs of transits alternating between 105.5 and 121.5 years — the last transit was in 2004." You can check this chart to see whether it'll be visible at your location, and when you should look. You'll need a safe way to watch unless you are Vulcan. And yes, there's even a phone app to help you out.

95 of 143 comments (clear)

  1. Is it just me... by Anonymous Coward · · Score: 4, Funny

    Or is there one of these once in a lifetime events about once a year?

    1. Re:Is it just me... by MobileTatsu-NJG · · Score: 4, Funny

      No, you're just really old.

      --

      "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

    2. Re:Is it just me... by 2.7182 · · Score: 1

      You are dead on. There are quite a few objects out there and a lot of "special" positions they can be in. Also, I don't know if it is really safe for Vulcans, since they might be temporarily blind. The full health implications were never discussed. Macular degeneration at 200 anyone?

    3. Re:Is it just me... by Fluffeh · · Score: 1

      Cool events happen all the time, but many of these individual events won't happen again for a long time. Like useless first posts on /. Each one is probably a different person posting, but they happen all the time... Do you see what I did there?

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      Moved to http://soylentnews.org/. You are invited to join us too!
    4. Re:Is it just me... by Relic+of+the+Future · · Score: 4, Informative
      No, but that one "Mars at closest approach!" email has been chaining around for a decade. (So remember people, make it clear that it's June 5th 2012 when you tell your Fwd: happy relatives and friends.)

      But seriously, the transit of Venus IS a big deal. The first post-enlightenment ToV was how we were able to determine the size of an AU, making it the first step in the chain to understanding the size of everything else in the universe beyond the Earth.

      --
      Those who fail to understand communication protocols, are doomed to repeat them over port 80.
    5. Re:Is it just me... by PPH · · Score: 1

      You must be thinking of going out of business sales.

      --
      Have gnu, will travel.
    6. Re:Is it just me... by Anonymous Coward · · Score: 3, Funny

      Better yet, this exact once in a lifetime event happened a scant 8 years ago... So those of you over the age of 8 might be witnessing a twice in a lifetime event.

    7. Re:Is it just me... by guanxi · · Score: 1

      The first post-enlightenment ToV was how we were able to determine the size of an AU, making it the first step in the chain to understanding the size of everything else in the universe beyond the Earth.

      Would you care to expand on that for the not-yet-enlightented?

    8. Re:Is it just me... by Anonymous Coward · · Score: 1

      8 + 105.5 = 113.5

      113.5 + 8 = 121.5

      Assuming no global catastrophe, it's virtually certain someone born in 2003 will live through three of them, and quite possibly four.

    9. Re:Is it just me... by Anonymous Coward · · Score: 3, Funny

      But probably only be lucid to one of them

    10. Re:Is it just me... by Opportunist · · Score: 1

      There was a shop around the corner from here with a sign "going out of business since 1994".

      Yes, it was a marketing gag, but at least a funny one for a change.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    11. Re:Is it just me... by Progman3K · · Score: 2

      Slashdot really is THE place where even the trolls post and debate existential issues logically.

      I guess that's the reason I still read here. Nothing else comes close.

      --
      I don't know the meaning of the word 'don't' - J
    12. Re:Is it just me... by Progman3K · · Score: 1

      Using Celestia to plot the orbits, I found out:
      Mars is currently (May 2nd, 2012) 0.95563 AU from us.
      Mars will be 1.2248 AU from us on June 5th, 20012

      --
      I don't know the meaning of the word 'don't' - J
    13. Re:Is it just me... by mcgrew · · Score: 2

      RTFA.

      Johannes Kepler successfully predicted that both planets would transit the Sun in 1631, part of which was verified with Mercury's transit of that year. But the first transit of Venus to actually be viewed was in 1639 -- an event that had been predicted by the English astronomer Jeremiah Horrocks. He observed the transit in the village of Much Hoole in Lancashire -- the only other person to see it being his correspondent, William Crabtree, in Manchester.

      Later, in 1716, Edmond Halley proposed using a transit of Venus to predict the precise distance between Earth and the Sun, known as the astronomical unit. As a result, hundreds of expeditions were sent all over the world to observe the 1761 and 1769 transits. A young James Cook took the Endeavour to the island of Tahiti, where he successfully observed the transit at a site that is still called Point Venus.

  2. More than once by SmlFreshwaterBuffalo · · Score: 5, Insightful

    ...in what will be a once-in-a-lifetime experience

    Transits occur in pairs...the last transit was in 2004.

    So, what you're saying is it could be a twice-in-a-lifetime experience for some?

    1. Re:More than once by rrohbeck · · Score: 5, Funny

      Well it's 2012. Maybe the Mayans were about a half year off.

    2. Re:More than once by Anonymous Coward · · Score: 5, Funny

      Let me make sure I've got this right. You spend time and money on observing Venus transit the sun and expected more than 'Just small circle passing by on sun's surface.' What exactly did you think was going to happen? Really I must know what you thought it was going to look like it.

    3. Re:More than once by Barbara,+not+Barbie · · Score: 3, Informative

      What money?

      WW1 aces would look into the sun with no eye protection whatsoever, because the best place to attack from was with the sun at your back.

      You cannot go blind looking at the sun.

      Yes, staring for several minutes can cause some damage, even sometimes permanent damage. But a few seconds at a time? Doesn't happen. And it's much less likely to happen if you're nearsighted to begin with and don't correct your vision (don't wear glasses or contacts) - the light simply will not focus.

      --
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    4. Re:More than once by oxapentane · · Score: 2

      It's quite hard to explain. e.g. Why dozens of people go to look on mona lisa? Just to see this really small piece of art under bulletproof glass which reflects every light in the room? Oh. Never mind. When I start to think about moments like this I usually find out that i should be in mental care hospital. ;) And my comment is just advie to everyone that they should think twice before they go to see this transit.

    5. Re:More than once by Bowling+Moses · · Score: 3, Funny

      I've already got binoculars and a sheet of paper's pretty cheap. To me this looks like a good excuse to buy a welder's hood with #14 glass (as per the link in TFA). Once I've got the hood, that's an excuse to buy the torch...and presto! A new hobby is born!

      OK, a welder's hood can be pricey. But you can buy the glass for less than $10.

    6. Re:More than once by PPH · · Score: 2

      At noon, Venus' shadow will fall on the Temple of Souls. You'll have to sneak by the Nazis (Godwin allowing), climb down and sneak off with the Arc of the Covenant. Don't look in it or you'll go blind.

      --
      Have gnu, will travel.
    7. Re:More than once by Kell+Bengal · · Score: 2

      Pilots like to attack with the sun behind them; that means that if you are expecting attack, you need to be looking at the sun because that's where the attack is likely to come from.

      --
      Scientists point out problems, engineers fix them
      altslashdot.org: The future of slashdot.
    8. Re:More than once by joocemann · · Score: 1

      Once or twice? Are ya'll listening to Aubrey DuGrey? Dude said (I think with much hope) that we may well live 500 years+.....

      Mortality sucks.

    9. Re:More than once by The+Snowman · · Score: 2

      You cannot go blind looking at the sun.

      Not entirely true, and taken partially out of context.

      Yes, the sun will hurt and be uncomfortable but not likely induce blindness. However, I have seen a telescope aimed at the sun during broad daylight focus the energy and ignite a piece of paper placed a few inches from the eyepiece. I do not possess a medical degree, but I will go out on a limb and say that it can cause blindness.

      --
      24 beers in a case, 24 hours in a day. Coincidence? I think not!
    10. Re:More than once by Anonymous Coward · · Score: 3, Funny

      What about if you look at the sun while masturbating?

    11. Re:More than once by BobNET · · Score: 2

      Is that you, Guillaume?

    12. Re:More than once by janeil · · Score: 4, Interesting

      Well, opinions differ. I watched that last transit on a cheapo telescope with a sun filter and would rank it very high as an astronomical experience. The perfect circle of venus moving across the sun, the speed of movement, just knowing what you were looking at was happening RIGHT NOW, blew me away. But I paid nothing, it was visible where I live. I wouldn't travel halfway across the world for a total eclipse, probably wouldn't do so to see another transit of venus, either. So, it's pretty cool, if you can watch it from your backyard.

    13. Re:More than once by Anonymous Coward · · Score: 1, Informative

      "...just knowing what you were looking at was happening RIGHT NOW, blew me away."

      Actually, what you were looking at was happening about 8 minutes ago.

    14. Re:More than once by Gadjet · · Score: 1

      I used to use the film of a floppy disk (open one up, or just pull back the slider) Of course finding a floppy disk now is a little more difficult. "Get off my lawn you damn kids!"

    15. Re:More than once by laejoh · · Score: 1

      It's twice in a lifetime max for those who look directly at the sun. The limit of 'the remaining eyes' after each transit goes to 0.

    16. Re:More than once by CharlyFoxtrot · · Score: 2

      Well it is quite interesting to think of the fact that you can see another planet passing before the sun, if you've got any kind of child-like wonderment about the universe still left in you. I agree with you on the Mona Lisa though.

      --
      If all else fails, immortality can always be assured by spectacular error.
    17. Re:More than once by Opportunist · · Score: 1

      8 minutes is pretty much "instantly" for the universe...

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    18. Re:More than once by Opportunist · · Score: 1

      I protest against this unfounded assumption and generalization in the name of every mutant on the planet!

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    19. Re:More than once by zippthorne · · Score: 1

      You don't actually need a fancy colored glass filter you know. Most "solar filters" are actually just a plate with a small hole in it that you place over the front of the telescope to act as an aperture.

      --
      Can you be Even More Awesome?!
    20. Re:More than once by djmurdoch · · Score: 1

      I've seen a reduced aperture used to view the moon, but I've never seen that done for viewing the sun. It would have to be a really small hole (a lot smaller than your iris; you can't look directly at the sun, can you?), and you'd lose all your resolution.

      Maybe you're thinking of a pinhole camera, where you use the pinhole instead of a telescope to project a solar image.

    21. Re:More than once by L4t3r4lu5 · · Score: 1

      So you're telling me that focussing a lot of energy into a small surface area can cause damage? Jesus... I guess that's why it hurts trying to put drawing pins in backwards.

      Pedant much?

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      Finally had enough. Come see us over at https://soylentnews.org/
    22. Re:More than once by CSMoran · · Score: 1

      If the sun is at your back, how can you look into it?

      Rear-view mirror, obviously.

      --
      Every end has half a stick.
    23. Re:More than once by mcgrew · · Score: 1

      And it's much less likely to happen if you're nearsighted to begin with and don't correct your vision (don't wear glasses or contacts) - the light simply will not focus.

      And you won't see that little dot crossing the sun. It's too out of focus.

    24. Re:More than once by RockDoctor · · Score: 1
      I prepared to watch the 2004 event, spending precisely nothing on it. I constructed a shadow mask for a small telescope that I already owned (because I'm interested in these things) and the remains of a box, mounted it on a tripod that I already own (because I'm moderately keen on photography in general), projected a solar disc onto another board mounted on a tripod borrowed from a friend, marked the positions of the feet on the garden path with some chalk and packed everything up ready for the transit the next day.

      Which was cloudy.

      Such. Is. Life.

      What was I expecting to see? A "little black spot on the sun today ...".

      Or, one of the fundamental measures of the size of the universe.

      But then again, while I'm hill walking, I pick up rocks and read the stories they contain. You get out of it what you put into it.

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
    25. Re:More than once by Coren22 · · Score: 1

      Had to look up drawing pin, never heard of it called that. For any other Americans, it is a push pin, they call them drawing pins in the UK as they are used to pin up drawings.

      --
      APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
  3. Also... by Laserfuzz · · Score: 2

    a good time to go out and support your local planetarium, science museum and/or local astronomy groups. (Yes, I work at a planetarium)

    1. Re:Also... by AvitarX · · Score: 2

      Yes, it will benefit communities that don't put ass hats like that into power. Natural selection can occur at that level as we are social creatures (thus models show "publishers" being beneficial to a system while detrimental to themselves surviving at a certain rate, benefiting the community. It makes sense for a community to tolerate the punishers, but a community of publishers collapses. The selective process trends toward the correct balance. too many complete morons in charge of raising your young will have a negative influence for that communities success, communities that let it happen will shrink.

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    2. Re:Also... by dotsandlines · · Score: 1

      Agreed! OK, so I work at a planetarium too. We really need a secret handshake or something.

    3. Re:Also... by Opportunist · · Score: 3, Funny

      Problem is, if you guys can see each other you're WAY out of reach for a handshake.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    4. Re:Also... by sjwt · · Score: 1

      Its only natural selection if that event somehow stops said ppl passing on their genes.

      --
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    5. Re:Also... by Laserfuzz · · Score: 1

      Hey Drew! Hope to see you when we host SEPA in Jax 2013!

    6. Re:Also... by GungaDan · · Score: 1

      "We really need a secret handshake or something."

      I thought it was the silent "t."

      --
      Eloi are stupid, throw morlocks at them!
    7. Re:Also... by CSMoran · · Score: 1

      Its only natural selection if that event somehow stops said ppl passing on their genes.

      You seem to imply that being blind has no influence on rate of mating.

      --
      Every end has half a stick.
  4. "Once in a lifetime..." by gumpish · · Score: 1

    Actually you forgot Poland...

    I mean, the singularity.

  5. Re:“This video is not available in your coun by oneiros27 · · Score: 2

    The two within the 'pairs' are 8 years apart, but the full pattern is:

    8 - 105.5 - 8 - 121.5 - (repeat)

    --
    Build it, and they will come^Hplain.
  6. Probably THE best way to "watch"... by Anonymous Coward · · Score: 5, Informative

    The Sun Today - Atmospheric Imaging Assembly

    Most likely the best view: 4500k - Visible Light

    Images are updated every 30 minutes.

    1. Re:Probably THE best way to "watch"... by Opportunist · · Score: 1

      I knew it. Why bother going out or anywhere, if there's anything worth being seen, there's certainly a webpage for it.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  7. I think Sting said it best by Crypto+Gnome · · Score: 1

    There's a little black spot on the sun today
    (That`s my soul up there)

    --
    Visit CryptoGnome in his home.
  8. Good view from home! by spaceyhackerlady · · Score: 3, Interesting

    I live in southwestern British Columbia, Canada, and not only will we have a good view (egress is just after sunset), the weather prospects are decent. My mylar filter is ready to go on my Takahashi, so is my Coronado PST, bought on the way to the airport to observe the 2006 eclipse in Turkey.

    In 2004 I looked at creative places I might go to see the transit, and one candidate was Inuvik, thanks to the midnight sun. Until I looked at the weather prospects there, and concluded it wasn't going to happen. I got skunked by the 2010 eclipse from Mangaia in the Cook Islands, nice sunny weather the entire time, except at the time of the eclipse. Nice place, otherwise.

    ...laura

    1. Re:Good view from home! by cyberchondriac · · Score: 1

      I live in southwestern British Columbia, Canada, and not only will we have a good view (egress is just after sunset), the weather prospects are decent. My mylar filter is ready to go on my Takahashi, so is my Coronado PST, bought on the way to the airport to observe the 2006 eclipse in Turkey.

      ...laura

      How do you know what the weather will be like on June 5?

      Myself, I've got a 80mm refractor with a sun filter, I'm all set to view this.. unless it's clouded over.

      --

      Look back up at my post, now look back down, you're on the Internet. Now look back up. I'm a signature.
  9. It was a big deal to 18th century astronomers by Anonymous Coward · · Score: 2, Interesting

    The Royal Society and its European counterparts dispatched astronomers to various places on Earth to observe the 1761 and 1769 transits. Two of them were Charles Mason and Jeremiah Dixon. Between transits Mason and Dixon spent almost five years surveying the boundary between Pennsylvania and Maryland. Only recently have I come to appreciate the magnitude of that accomplishment, thanks in part to the Mark Knopfler song.

    1. Re:It was a big deal to 18th century astronomers by ICantFindADecentNick · · Score: 1

      Maybe that explains why NASA put in all of the US state borders on their map as homage to Mason and Dixon. Don't know why they also did it for Australia though. Assuming that that isn't actually the reason, why the hell would you draw a map like that? It looks really weird - unless it's just an American aesthetic?

    2. Re:It was a big deal to 18th century astronomers by mattack2 · · Score: 1

      thanks in part to the Mark Knopfler song.

      So Mason & Dixon got money for nothing, and chicks for free?

      Seriously, I'm not sure what song you're talking about, and a bit of looking around the Mark Knopfler & Dire Straights wikipedia pages doesn't elucidate it.

  10. Re:June 4th alignment by gstrickler · · Score: 1

    Yes, but I'm a solid Cancer. What does this alignment mean about my future?

    --
    make imaginary.friends COUNT=100 VISIBLE=false
  11. Viewing Earth on Venus... by fatp · · Score: 2

    During the transit, when looks at Earth from Venus, will the shadow of Venus look like a dot on Earth? What's this phenomenon called? (something eclipse??)

    1. Re:Viewing Earth on Venus... by Ironchew · · Score: 1

      During the transit, when looks at Earth from Venus, will the shadow of Venus look like a dot on Earth? What's this phenomenon called? (something eclipse??)

      During the transit, Earth will be in the antumbra of Venus, so no, there won't be a clearly-defined shadow.

    2. Re:Viewing Earth on Venus... by sFurbo · · Score: 1

      As Venus does not totally blot out the sun as seen from Earth, the shadow will not be very black. As the sun parallax is very small, the shadow will hit all of Earth almost simultaniously.

    3. Re:Viewing Earth on Venus... by box4831 · · Score: 1

      During the transit, when looks at Earth from Venus, will the shadow of Venus look like a dot on Earth? What's this phenomenon called? (something eclipse??)

      When looking at the Earth while on Venus, all you'll see is your eyeballs melting down your boiling, crushed face.

      --
      Miller Lite tastes like water that's somehow managed to rot.
  12. I'll be there by Cyphase · · Score: 1

    I don't know about you, but I plan to be on Venus in 2117. Then I'll scoot over to Mars to watch the 2125 transit of Venus.

    --
    by Cyphase ( 907627 )
  13. Those wanting to photograph without damaging cam by tanveer1979 · · Score: 4, Informative

    400mm telephotos are best, but your camera will damage if you try to do direct photography.
    So go to ebay.com, and get a cheap 900nm+ IR filter. These filters are so dark, that even bright sun is a pale object through them.
    These cost 20$ for a 77mm filter.

    With filter on, point your cam at sun, shoot with 1/1000 or faster and then quickly point camera away.

    Remember, do not keep camera pointed at the sun continously.

    I did a solar eclipse with 300mm lens.
    Here are the pics
    http://tanveer.smugmug.com/Nature/Solar-Eclipse-July-22/8996323_xLmdqp#!i=598157547&k=7ZhhD.

    you can also stack two filters, but then you would need a shutter speed of 1/500 or slower.

    --
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  14. I want to watch this with the neighborhood kids... by idji · · Score: 1

    How do I do this? where are the best websites?

  15. Vénus tout entière à sa proie atta by Kupfernigk · · Score: 1
    Ce n’est plus une ardeur dans mes veines cachée,
    C’est Vénus toute entière à sa proie attachée.
    (Racine, Phèdre)

    Yup, misled by an Enlightenment poet, he was expecting multiple orgasms.

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
  16. Re:I want to watch this with the neighborhood kids by Anynomous+Coward · · Score: 1

    Last time (June 8th 2004, IMRKIAG) I mounted a cheap catadioptric 20x-50x spotting scope on a tripod, pointed it at the sun and catched the projected image on a piece of paper held about 20" from the eyepiece. By adjusting the focus and zoom I obtained a nice 4" image of the sun's disk to watch sunspots, transiting venuses and airliners.

    Very easy and safe; no filters required. Binoculars might also work if you convert it into a monocular by capping one half.

    Experiment now, so you'll be prepared for the event !

    --
    I'm not a coward by any name.
  17. Parent is right, you are wrong by Kupfernigk · · Score: 2
    The event (visible transit of Venus) is happening at his location. Except within a cylinder the diameter of the Sun and projected from it in the direction of Venus, nothing of interest is occurring at all.

    Looked at from an overall point of view, this cylinder exists all the time since the Venus-Sun axis is always there, and is only of interest when the Earth intersects it and we see a transit. So, from a time point of view, the event is happening at the Earth, neither Venus nor the Sun.

    --
    From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
    1. Re:Parent is right, you are wrong by djmurdoch · · Score: 1

      A cylinder? Eclipses are all about cones, man.

    2. Re:Parent is right, you are wrong by Kupfernigk · · Score: 1

      The actual shape is much more complicated than even a cone since Venus is moving in orbit. If you expect me to come up with the equation of a shape like that in a three minute post rather than use the very approximate term "cylinder", either you're being unrealistic or you have me confused with Johann von Neumann.

      --
      From scarped cliff or quarried stone she cries "A thousand types are gone, I care for nothing, no not one."
  18. As good an excuse as any to head to Hawaii. by Shag · · Score: 1

    The Visitor Information Station on Mauna Kea (home of the world's top multi-band complex of large observatories) is planning to have a bunch of stuff going on for transit day - see their page.

    Sadly, I'll be in DC. :(

    --
    Village idiot in some extremely smart villages.
  19. Upcoming partial solar eclipse as well by Jon+Abbott · · Score: 1

    Don't forget there is also a partial solar eclipse happening on May 20 in the Western U.S. More info here:
    http://www.dailycamera.com/get-out/ci_20490292/colorado-have-best-solar-eclipse-u-s-has

  20. Re:June 4th alignment by Opportunist · · Score: 2

    Whatever influence those bodies should have on us cannot be explained with physics, aside of the moon's influence, which is very real and observable. Its influence is due to gravity, which is explained both by its relatively large size (seriously, we have the biggest moon in the solar system compared to the mass of the main body, at least since Pluto/Charon have been demoted) and its closeness. It's actually big enough to make the center of gravity of the Earth-moon system considerably outside the center of Earth. That something like this can and actually does have an influence on tides and weather is a given and easily observed.

    The rest, well, the rest of the planets are simply too friggin' far away to have any measurable gravitational impact on our planet or anything on it. Even Jupiter, the largest body in our solar system aside of the sun, is insignificant in both its size and hence gravity compared to our main solar body. Its main influence, if you will, is that it acts as a huge vacuum cleaner that keeps debris from the Oort cloud away from us should that crap decide to fall towards the sun.

    I'd like to be open to any kind of input you might have, and without reasonable doubt I don't want to refute your claim that the other celestial bodies have some kind of influence on us, but I have a hard time seeing just what influence they supposedly have. Aside of the sun, none emit light. Aside of the moon, none are able to block out the sunlight, and even the moon can only do so for a few minutes in decades or centuries. Aside of moon and sun, none have gravitational influence.

    So whatever influence these planets should have has to be in some other way. But what way?

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  21. Re:Actually, ... by Opportunist · · Score: 3, Funny

    Good idea. I mean, as a geek, dates are probably rarer than Venus transits.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  22. black vs yellow by Inigo+Montoya · · Score: 1

    So much conversation about a black dot crossing a yellow dot.

  23. I just saw this on Inspector Lewis by gelfling · · Score: 1

    On Netflix. How Oxfordian is that?

  24. Re:Obligtory Police quote by eternaldoctorwho · · Score: 1

    Hey! That's my soul up there, you insensitive clod!

  25. Finally I can see this one by GameboyRMH · · Score: 1

    I can't see most cosmic events because that's how boring this part of the planet is.

    --
    "When information is power, privacy is freedom" - Jah-Wren Ryel
  26. Not the last chance in our lifetime by value · · Score: 1

    This may be the last chance to see it from Earth in the next 100 years, but Venus transits can be seen all the time from an orbit around the Sun. With the development of space travel in the near future, it is very likely that many people will get another chance to see a Venus transit from space, within their lifetime.

    I can imagine space tourism companies offering "Venus Transit" tours in the not so distant future. (Maybe 10 - 15 years?)

    1. Re:Not the last chance in our lifetime by Amouth · · Score: 1

      yea because with the current difficulties in reaching escape velocity just to get to orbit.. breaking out of the gravity well will be simple in 10-15 years.

      --
      '...if only "Jumping to a Conclusion" was an event in the Olympics.'
    2. Re:Not the last chance in our lifetime by value · · Score: 1

      There are a lot of possibilities once LEO can be reached reliably. I think SpaceX has a good chance to do it.

      Once LEO access is cheap enough, someone could build a nuclear powered space-only vehicle, that would never land on Earth and would stay in space all the time (to make the environmentalists happy).
      At first it could be powered with RTG-s (the tech already exists today). Later it could be upgraded to use actual nuke reactors.
      Something like that could escape the Earth's gravity very easily.

    3. Re:Not the last chance in our lifetime by Amouth · · Score: 1

      your idea relies heavily on Ion thrusters that while they do exist are not "fast" and i seriously doubt would work for a maned mission out side of earths gravity well (something we have never done mind you). I think the thought that in 10-15 years we could see commercial flights offering people a trip to see Venus transit the sun is the same as people 20-30 years ago saying we would have flying cars. And while yes it could be done, it's just not practical or cost efficient.

      --
      '...if only "Jumping to a Conclusion" was an event in the Olympics.'
  27. Re:Those wanting to photograph without damaging ca by awrowe · · Score: 1

    Baader Solar Safety Film

    Its really easy. Make your own filter, fit it over camera, telescope, binoculars, whatever.

    And no, I'm not connected with First Light Optics or Baader. I don't care where you get it, but unless you want to join the soon-to-be-living-with-reduced-vision crowd up there, use this stuff or something like it instead of the welders goggles, floppy disk film or whatever else they are advocating.

    --
    A.I. Research. The peculiar science in which we know the question and we know the answer, but can't show the working
  28. ...huh? by JustAnotherIdiot · · Score: 1

    Transits occur in pairs separated by eight years, with the gap between pairs of transits alternating between 105.5 and 121.5 years — the last transit was in 2004.

    So, what you're saying is that 8 is equal to 105.5 or 121.5?
    I don't know what planet you're from, but that math is very, very wrong.
    It's wrong to the point that even I noticed that.

    --
    What do I know, I'm just an idiot, right?
  29. Herp Derp by JustAnotherIdiot · · Score: 1

    Transits occur in pairs separated by eight years

    Somehow my mind skipped over this. IGNORE ME.

    --
    What do I know, I'm just an idiot, right?
  30. Re:Those wanting to photograph without damaging ca by John+Bokma · · Score: 1

    soon-to-be-living-with-reduced-vision

    Maybe read this first before spreading disinformation? http://mintaka.sdsu.edu/GF/vision/Galileo.html

  31. King of pain by mcgrew · · Score: 1

    There's a little black spot on the sun today
    It's the same old thing as yesterday
    - The Police

    These Venus transits only happen ecery 105-121 years, so you've never seen it and will never see it again. BTW, interesting FA.

    1. Re:King of pain by Coren22 · · Score: 1

      Except for the one in 2004 :)

      But, my kids are going to be old enough to appreciate the importance of it, I will have to setup the telescope.

      http://en.wikipedia.org/wiki/Transit_of_Venus

      A transit of Venus took place on 8 June 2004 and the next will be on 6 June 2012. The previous pair of transits were in December 1874 and December 1882. After 2012, the next transits of Venus will be in December 2117 and December 2125.

      --
      APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
  32. Do not look into sun... by rocket+rancher · · Score: 1

    ...with remaining eye.

  33. Quickie AskSlashdot: Telescopes by Compaqt · · Score: 1

    Would anybody already into the hobby like to comment for someone who is not (yet)?

    Reflective vs. refractive?

    Brands? The electronic ones?

    I just want one which will capture the interest of a 9-10 year old without being too fragile to be accidentally damaged.

    It's hard to sort out the sales gimmicks from the real information. Anything near $100 or is that too optimistic?

    --
    I'm not a lawyer, but I play one on the Internet. Blog
  34. I really do not know... by tanveer1979 · · Score: 1

    But I don't want to take risks.
    IR 900nm type of filter will cut out UV and visible light, but will let in Infra red radiation, and Sun is a pretty powerful source.

    --
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  35. Re:Those wanting to photograph without damaging ca by awrowe · · Score: 1

    soon-to-be-living-with-reduced-vision

    Maybe read this first before spreading disinformation? http://mintaka.sdsu.edu/GF/vision/Galileo.html

    Put your eye against even a replica Galilean telescope which is pointing at the sun and I'll challenge you to read it again if you like.

    --
    A.I. Research. The peculiar science in which we know the question and we know the answer, but can't show the working
  36. Re:Those wanting to photograph without damaging ca by John+Bokma · · Score: 1

    So you disagree with the information given on that page. Anything to support that other than smart-assing?

  37. Re:Those wanting to photograph without damaging ca by awrowe · · Score: 1

    That page mentions that Galileo didn't blind himself by looking at the sun through a telescope, which I'm quite happy to accept. As that page states, he fell in love with solar projection and quite wisely performed his studies on the sun using that method.

    The way you are using that page however seems to imply that looking at the sun through a telescope will do no harm. So again, I reiterate. You look at the sun directly through a telescope, then come back and tell us how safe it is. Alternatively, join the crowd of soon-to-be-living-with-reduced-vision people I mentioned.

    It's one thing to disprove a myth, it is quite another to infer causality from the act of disproving it. Just because Galileo didn't blind himself by looking at the sun through a telescope doesn't make it safe. It's decidedly unsafe and suggesting it is anything else borders on criminal irresponsibility.

    Looking forward to your response, although I suspect I will have to wait some time if your response includes empirical data from that little experiment I suggested.

    --
    A.I. Research. The peculiar science in which we know the question and we know the answer, but can't show the working