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Close Encounters Of The Mars Kind

Lab_rat0 writes "Never again in our lifetimes will the Red Planet be so spectacular! This month and next, Earth is catching up with Mars, an encounter that will culminate in the closest approach between the two planets in recorded history. This article at EliteGeek has more details. According to Agg over at OCAU, this is probably the reason for all the Mars probes launched over the last few months."

36 of 153 comments (clear)

  1. Never again in our lifetimes? by Anonymous Coward · · Score: 5, Funny

    Speak for yourself. I plan to live to at least 150,000 years of age. I'm sure I'll see better.

    1. Re:Never again in our lifetimes? by error502 · · Score: 4, Funny

      Well, since time doesn't exist, you have a shot.

    2. Re:Never again in our lifetimes? by G-funk · · Score: 3, Funny

      Not to mention if those of us spent less time on slashdot and more time outside, you would simply have noticed the (comparitively) massive red ball in the sky :)

      Of course I only noticed coz my little brother called me out, but hey - it's cold out!

      --
      Send lawyers, guns, and money!
  2. Bad Joke Alert by jeffkjo1 · · Score: 3, Funny

    According to Agg over at OCAU, this is probably the reason for all the Mars probes launched over the last few months."

    But when are they going to probe Uranus?

    1. Re:Bad Joke Alert by Izago909 · · Score: 4, Funny

      But when are they going to probe Uranus?

      Scientists renamed that planet in the year 2354 to end that old joke once and for all. It's now known as Urectum.

      "Afer all, who needs courage when you have a gun?"
      -Prof Hubert Farnsworth

    2. Re:Bad Joke Alert by Mard · · Score: 3, Funny
      --
      DRM = Digitally Restricted Media. This is a viral sig, pass it on.
    3. Re:Bad Joke Alert by Mostly+Harmless · · Score: 3, Informative

      Speaking of Uranus, the bluish planet reaches opposition on August 24 in Aquarius, about 8 west of Mars. It may be possible to see it with the naked eye. Tonight (August 4), Neptune will be in opposition in Copernicus, but probably not visible without a small telescope. The full moon is the 12th, and the Perseid meteor shower peaks on the 13th, with the best viewing time around an hour or two after sunset. Enjoy!

      --
      "`Ford, you're turning into a penguin. Stop it.'" -Douglas Adams, THHGTTG
  3. Obligatory Zubrin post... by bc90021 · · Score: 5, Interesting

    Since Mars is so close, it's a shame that more people haven't read "The Case for Mars" (see here, and no, I am not affiliated in any way), as now would be a very good time to put some of the principlesinto practise and land someone on Mars!

    1. Re:Obligatory Zubrin post... by EverDense · · Score: 5, Funny

      now would be a very good time to put some of the principlesinto practise and land someone on Mars!

      Preferably someone that I don't like.
      Preferably without a space suit.

      --
      http://jesus.everdense.com/
  4. Mirror by Anonymous Coward · · Score: 5, Informative

    In case the site (or routes to the site) get slashdotted, here is a mirror to the link.

  5. Text by Anonymous Coward · · Score: 5, Informative

    Never again in our lifetimes will the Red Planet be so spectacular!
    This month and next, Earth is catching up with Mars, an encounter that
    will culminate in the closest approach between the two planets in
    recorded history.

    The next time Mars may come this close is in 2287.

    Due to the way Jupiter's gravity tugs on Mars and perturbs its
    orbit, astronomers can only be certain that Mars has not come this close to
    Earth in the last 5,000 years but it may be as long as 60,000 years.
    The encounter will culminate on August 27th when Mars comes to within 34,649,589
    miles and will be (next to the moon) the brightest object in the night sky.
    It will attain a magnitude of -2.9 and will appear 25.11 arc seconds wide.
    At a modest 75-power magnification, Mars will look as large as the full moon to
    the naked eye.

    Mars will be easy to spot. At the beginning of August, Mars will rise in the east at 10 p.m. and reach its azimuth at about 3 a.m.
    But by the end of August when the two planets are closest,
    Mars will rise at nightfall and reach its highest point in the sky at 12:30 a.m.
    That's pretty convenient when it comes to seeing something that no human has
    seen in recorded history.

    So, mark your calendar at the beginning of August to see Mars grow
    progressively brighter and brighter throughout the month.

    1. Re:Text by Spock+the+Baptist · · Score: 5, Informative

      "It will attain a magnitude of -2.9 and will appear 25.11 arc seconds wide."

      This from Sky & Telescope: 'Mars becomes almost this large every 15 or 17 years -- whenever it passes closest to Earth (near opposition) within a few weeks of the date it is also nearest the Sun (perihelion). For example, in August 1971 the disk became as large as 24.9", and in September 1988 it reached 23.8". Less-ideal views come at intervals of about 2 years 2 months, as in May 1999 when it reached 16.2", and in June 2001 when it attained 20.8". Putting August 2003 in perspective, this is one of five chances (at most) in your entire lifetime that you'll see Mars so clearly.'

      So this month Mars will appear some 0.21 arc-seconds larger than it did in August 1971. This is really not enough for the human eye to make a distinction. That said, you really ought to take advantage of this opposition. I know that I will.

      Clear Skies
      STB

      --
      "Oh drat these computers, they're so naughty and so complex, I could pinch them." --Marvin the Martian
  6. Why go to Mars? by Hackie_Chan · · Score: 5, Funny

    Why go to Mars when you've got Rekall?

    >... and about those lobotomies, statistics show that it's safer to use Rekall than to travel to the red planet itself.

    I'm delightfully interested in that Agent-package... Hmm...

    --

    What's so bad about being lazy? What if there was a war and nobody showed up?
  7. Re:Does this have a practical purpose? by Ieshan · · Score: 3, Insightful

    If you read the fucking story, you'd note that the *poster* says he thinks that Nasa has been launching probes (they've launched two to Mars in recent months, rememeber?) to take advantage of this phenomenon. Launching them on "the day" doesn't really accomplish anything, because by the time your probe is launched, Mars is already heading farther away (remember, probes take longer than a day to get to Mars?).

  8. Re:Does this have a practical purpose? by Osty · · Score: 4, Insightful

    Is there going to be a Mars probe launched on this date of closest approach

    Launching a mission on the date of closest approach would be poor timing. To take advantage of this, missions would need to be launched prior to that date (how long before can be figured out, but I don't know the data to do so). If you launch on the day when Mars and Earth are closest, you'll immediately begin chasing Mars and the trip will not be optimal. If instead you launch before hand, you're travelling towards mars while it's travelling towards you. The rate of movement may be so minimal that it won't make a difference, but I don't know.

  9. Re:Does this have a practical purpose? by error502 · · Score: 3, Informative

    No, it would have had to have been launched before the date of closest approach. If you launched a probe, etc. at Mars (coming towards you), they'll meet up much sooner than if you launch on the date when Earth and Mars are actually nearest (since they're traveling towards each other). If you actually ended up launching on the day that Earth and Mars are closest, then Mars would be moving *away* from the probe shortly after launch, thus making it harder to get to.

  10. The end is near! by uncoveror · · Score: 4, Funny

    Get your affairs in order, the end is near! This would be the perfect time for the Zhti Ti Kofft, as the Martians call themselves, to invade and conquer.

    --
    The Uncoveror: It's the real news.
  11. More details by GillBates0 · · Score: 5, Informative
    For those looking for more formal/detailed articles:

    Space.com
    abc.net.au
    Telescopes-Astronomy.com - lots of details about suitable telescopes etc.

    As an aside, about an earlier event fromThe Universe Today:
    A rare astronomical event will occur in May 1999- Mars will be the closest it ever gets, only 52.8 million miles. In addition, the Red Planet is in opposition, which means its face is completely lit up by the Sun. Amateur astronomers will be able to see normally obscure features like the polar caps and canyons.

    --
    An Indian-American Hindu committed to non-violent thought/speech/action alarmed by the global explosion of radical Islam
  12. Maps of Mars, including dust storm by Whitecloud · · Score: 5, Informative

    For global views of Mars check here, however at this time of year (August) Mars is enveloped in planet wide dust storms, so the view is going to be obfuscated by all that red grit...if you want to check out before and during storm pics then click here.

    many more pics available from the Mars Global Surveyor: Mars Orbiter Camera (MOC)here.

    --

    Do you need a website upgrade?

    1. Re:Maps of Mars, including dust storm by twostar · · Score: 4, Funny

      How can a planet be enveloped in more the one Planet Wide storm? :D

  13. Don't get TOO excited... by JayBlalock · · Score: 5, Interesting

    Here's the Snopes entry on it. Essentially, while it's technically true that this is the closest pass in 60,000 years or so, to most observers there won't be any appreciable difference between this pass and the semi-close passes it makes every 15 years or so. The interest lies mainly in how this makes it more easy to launch probes. (and note the similarity in wording between the Snopes version and the post. Hmmm...)

    --
    Bush: He's Liberal in all the wrong ways.
  14. Head to the hills, mama! by wiggys · · Score: 3, Funny
    I don't know about you but this creeps me right out! I've just been reading this book (guy at work tells me its a transcript of a radio news bulletin) and I'm kinda scared right now.

    Got the wife and kids in a truck, and we're gonna head to the hills for a while. Got meself a shotgun... just in case those Martians come for ME!

    --

    Sorry, but my karma just ran over your dogma.

  15. Re:Probably? by MarcQuadra · · Score: 4, Insightful

    But it's NOT the best time to send something to Mars. It would have been best to launch something about a year and a half ago, when mars and earth were moving towards each other, and have the probe REACH Mars when it starts getting farther away.

    --
    "Sometimes, I think Trent just needs a cup of hot chocolate and a blankie." -Tori Amos on Nine Inch Nails
  16. You can simulate this event in Celestia by Jugalator · · Score: 5, Informative

    Users of Celestia (the stunning open-source galaxy simulator) can verify this and a whole lot of other space events as Mars is, at August 27, 0.373 AU from Earth. When I'm typing this, Mars seems to be 0.410 AU from Earth.

    1 AU = 149,597,870.691 km

    0.373 AU = 55800005 km
    0.410 AU = 61335126 km

    The values seem to be slightly off (by around 1%) when compared to the article's shortest distance, from the approximated planetary orbits.

    --
    Beware: In C++, your friends can see your privates!
    1. Re:You can simulate this event in Celestia by digitalhermit · · Score: 4, Informative

      You can also use the program kstars, part of the KDE suite. I've only been playing with it for the past couple days but am impressed. It allows you to retrieve actual images from an observatory for any object in its database, has the obligatory constellation maps, extended info via the web for the major bodies, etc.. It doesn't allow tours through the Solar System as does Celestia, but is useful for any planetbound stargazers out there.

      BTW, the RH8.0 sources build fine on RH9.

  17. I've seen it by ralphclark · · Score: 5, Informative

    It's fairly big already - about 20 arcseconds I should think - and I've taken a look a few times already the past few days (in my 10" F5 reflector, 4mm ultrawide plossl eyepiece, magnification about 300x). Why look now before opposition? Because it has already passed it's maximum declination in mid-to-late July, even then at about only 25 degrees above the horison where I am, and is now getting lower each night. Even at maximum elevation it was so low that atmospheric distortion mucks up the image quite badly.

    In fact, although this is supposed to be the closest opposition for maybe the past 60,000 years, the low elevation means it's not really such a great observation opportunity for astronomers in the northern hemisphere. I was just about able to make out the southern polar cap and some blurred greyish surface features in the southern hemisphere.

    If you live further South though, there should be some really spectacular views with Mars almost overhead. And it's so bright that you don't need a large telescope - just a good one. And an equatorial mount is a must, because the damn thing moves so fast.

  18. for those of us without telescopes or probes... by selderrr · · Score: 5, Informative

    there's always the astronomy pic of the day

    And for those of us with OSX, there's a macosxhints article that helps you rotate your desktop pic with the APotD

    1. Re:for those of us without telescopes or probes... by mahart · · Score: 4, Interesting

      Speaking of APotD here's a good composite image of Mars

      I usually only like the high-res pics that have been through a million filters to look sexy...
      APotD often has lots of grainy bland pics that are scientifically useful but not exactly great desktop material

  19. The Power of /. by joepa · · Score: 3, Informative

    Slashdot has just made "Close Encounters of the Mars Kind" the most read story in the recorded history of Elite Geek (and by quite a large margin).

  20. Re:Probably? by twostar · · Score: 3, Informative

    Actually the Japanese probe was launched over a year ago (can't remember the exact launch date) and suffered a engine failure. They did some orbit changes and had it swing by Earth agian before heading to Mars a second time. This time how ever it's on a free trajectory and shouldn't need much engine use. They are running extremely low on fuel though and some of the parts have begun to fail. They're not completely sure the probe will make it. But it does result in a swarm of probes heading towards Mars and hopefully will result in alot of data coming back from various parts of the planet and from orbit all at the same time which will give scientist a better overal view of the planet.

  21. Dude.... by Cable_Monkey · · Score: 3, Funny

    Source: My E-Mail.

    That isn't fair! My teachers would never let me reference my email when turning in a paper. >:-(

  22. For the best amateur (MARS) pictures, go here. by deathcow · · Score: 4, Interesting
    These guys are using some of the best cameras and telescopes that amateurs can buy. (Or at least, hope to buy, since there are multi-year long waiting lists.)

    MARS 2003 Pictures

    Every year, amateurs and their techniques are improving. This team of Germans, with their Astro-Physics 10" Maksutov-Cassegrain telescope are on the cutting edge of amateur astrophography.

  23. Saw it last night by mholt108 · · Score: 3, Funny

    Girlfriend looked up into the sky and said oooohhhh isnt that a big star. Deary me! replies he, thats no star viewed from afar, thats just a plantet, get it right god damitt!

  24. Headlines in Martian Times by vikrant · · Score: 3, Funny

    An article in the Most popular mars daily paper reads:

    Little green men on Mars are being warned about the upcoming close encounter with our appearently beautiful neighbor, Earth.

    The inhabitants of the planet Earth are known to be greedy, territorial and suicidal (they have enough nuclear power to blow their planet 10 times over. We still don't understand why they call our planet "The God of War"). They have already consumed their home planet, and are expected to be looking towards us during this encounter. Some of them may even try to hop on to our side. Reports confirm 2 or 3 rocket ships launched earlier this year moving towards Mars.

    Continue staying underground in caves. Build no canals, humanoid faces or any other structures on the surface reflecting presence of intelligent life on our planet. continue the planet wide dust storm as it will repel the earthlings.

    Earth will probably stink because of high leavels of pollution.

    ---
    The secret source of humor is not joy but sorrow; there is no humor in Heaven.
    -- Mark Twain

  25. Mars will come within 2,400 miles by Anonymous Coward · · Score: 3, Informative

    of the 2003 distance in 2208, a 0.007% difference - and came within 12,000 miles in 1924, which is 0.03%, according to The Opposition Cycle Of Mars, by Jeffrey Beish.

  26. Starry Night - Mars Encounter Program by Anonymous Coward · · Score: 4, Informative

    Starry Night has released a nice little util that tracks the approach to mars. Its pretty neat.

    Runs on osX and win.

    http://www.starrynight.com/MarsEncounter/