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Astronomers Find the Calmest Place On Earth

The Narrative Fallacy writes "Live Science reports that astronomers in search of the perfect site to take pictures of the heavens have combined data from satellites, ground stations and climate models in a study to assess the many factors that affect image quality — cloud cover, temperature, sky-brightness, water vapor, wind speeds and atmospheric turbulence. They have pinpointed the coldest, driest, calmest place on earth, known simply as Ridge A, 13,297 feet high on the Antarctic Plateau. 'It's so calm that there's almost no wind or weather there at all,' says study leader Will Saunders, of the Anglo-Australian Observatory. 'The astronomical images taken at Ridge A should be at least three times sharper than at the best sites currently used by astronomers.' Located within the Australian Antarctic Territory, the site is 89 miles from the PLATO (PLATeau Observatory) international robotic observatory. The new site would be superior to the best existing observatories on high mountain tops in Hawaii and Chile, Saunders says. 'Because the sky there is so much darker and drier, it means that a modestly-sized telescope would be as powerful as the largest telescopes anywhere else on earth.'"

24 of 231 comments (clear)

  1. For Earthbound, mebbe... by jamstar7 · · Score: 5, Interesting

    but I still think the best spot for observational astronomy has to be the far side of the Moon. You've got several thousand miles of light and EM shielding, and a good couple weeks' seeing a month when the Sun goes down. Once the 'scopes cool off, there's no warping. What's not to love?

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    1. Re:For Earthbound, mebbe... by jamstar7 · · Score: 3, Informative

      I said Far Side, not Dark Side. Dark Side Of The Moon is a Pink Floyd album.

      --
      Understanding the scope of the problem is the first step on the path to true panic.
    2. Re:For Earthbound, mebbe... by John+Hasler · · Score: 3, Informative

      > The moon gets as much sunlight over it's entire surface.

      Not at the poles. In fact there is at least one crater near the South pole that is in permanent shadow.

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    3. Re:For Earthbound, mebbe... by tomhudson · · Score: 5, Interesting

      And the antarcitc site comes with its' own problems, Since it isn't windy, any man-made smog will stay there. You're going to need to burn fuel for the generators, heating, transport, etc., and in cold temperatures you're going to get the water vapor in the exhaust crystalizing, forming ground-level fog. Since it's so calm, it'll just accumulate, then condense on the cold optics. Have fun seeing when your mirror's frosted over with an inch of rime.

    4. Re:For Earthbound, mebbe... by NatasRevol · · Score: 5, Informative

      Fortunately, it's on a mountain ridge. The smog/fog will go....down.

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    5. Re:For Earthbound, mebbe... by kat_skan · · Score: 4, Funny

      Funny you mention "love" because there's no women on the moon, or on that ridge in Antarctica, which is a major drawback of accepting either of those jobs.

      Aw, the solitude's not so bad. The guy you really gotta feel sorry for is the midget they crammed inside the Hubble to draw everything he saw and drop the pictures back to Earth, message-in-a-bottle style.

    6. Re:For Earthbound, mebbe... by Avalain · · Score: 3, Insightful

      You don't need to burn fuel. You can just set up a windmill and a solar array! Oh, wait....

    7. Re:For Earthbound, mebbe... by Stuntmonkey · · Score: 5, Informative

      Since it's so calm, it'll just accumulate, then condense on the cold optics. Have fun seeing when your mirror's frosted over with an inch of rime.

      Presumably you put the generator a sufficient distance away to minimize any disturbance to the optics, or to seeing quality. The area gets almost no precipitation and probably no animal life, so anything you lay on the ground will remain undisturbed. In this sense it seems like an ideal place to run an automated telescope, if you can get past the somewhat difficult access issue.

      Regarding the "condensing on the optics" problem, astronomers have hundreds of years of experience dealing with this issue. The simplest approach is to slightly warm the optics using resistive heaters. As long as the optics are slightly warmer than the surroundings, any water in the air will condense somewhere else. You don't want too much heating, since then you form convective air currents above the mirror that harm the seeing conditions. However with some reasonably accurate temperature sensors and a feedback controller, the condensation problem is straightforward to solve.

    8. Re:For Earthbound, mebbe... by gcobb · · Score: 3, Funny

      Doesn't that just suggest that polar bears love to eat penguins?

  2. Umm, right. by ColdWetDog · · Score: 5, Funny

    It's also in the Middle of Nowhere. So getting to it is going to be very expensive.

    Anyhow, we're on to you, Mr. I'm-extraordinarily-antisocial Astronomer. We are not going to support your social avoidance issues with a multimillion dollar playpen. Just take your meds!

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    Faster! Faster! Faster would be better!
  3. Antarctica... by TheBilgeRat · · Score: 5, Funny

    Isn't that where the second Stargate resides?

    1. Re:Antarctica... by DarthBart · · Score: 4, Informative

      The Antarctic gate was in storage after being retreived from McMurdo.
      The original Giza gate was in use at SGC until it was beamed up into Thor's ship before it crashed into the pacific.

      Then the A-Gate became the primary because the G-Gate was thought lost in the Pacific, but it was infact retrieved by the Russians and they ran their own gate program.

      It was the A-Gate that was destroyed by Anubis. The G-gate was then purchased back from the Russians after they figured out that Anubis's gate-blower-upper-thingy was destroyed.

      Yes, I'm a Gate Geek.

  4. Calmest place on earth = Calmest resort on earth! by billlava · · Score: 4, Funny

    Quick, before anyone else can, let's raise some venture capital and build a few resorts there.

    The commercial practically writes itself!
    Ridge A villas, your ticket to paradise on earth!*


    *Ridge A Villas is not responsible for hypothermia, loss of limbs due to gangrene, or Abominable Snowman attacks. Any lawsuit filed against Ridge A Villas must be filed in Antarctica county district court jurisdiction within 90 hours of the incident.

  5. Miles? by Anonymous Coward · · Score: 5, Funny

    89 miles

    Could someone convert that into a number the rest of the world understands?

    1. Re:Miles? by oldspewey · · Score: 5, Funny

      It's 712 furlongs

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    2. Re:Miles? by Anonymous Coward · · Score: 5, Funny

      89 miles

      Could someone convert that into a number the rest of the world understands?

      It's 0x59 miles.

    3. Re:Miles? by tnk1 · · Score: 4, Funny

      89 miles

      Could someone convert that into a number the rest of the world understands?

      89 metric miles.

  6. Australian Antarctic Territory ? by mbone · · Score: 5, Informative

    Located within the Australian Antarctic Territory

    Note that the USA, Russia, China, and many other countries do not recognize this territory as being in any way Australian.

  7. Wow, that sounds like paradise. Wait.. by xant · · Score: 4, Funny

    > The new site would be superior to the best existing observatories on high mountain tops

    Except for the fact that it's in fucking Antarctica? I think the researchers currently in Hawaii would be pretty annoyed to have to move. :-)

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  8. It has at least one thing going for it... by Zantac69 · · Score: 5, Funny

    ...the danger of fire is very low - take note, Mount Wilson Observatory!

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  9. What about the Katabatic winds? by d474 · · Score: 4, Interesting

    I wonder why the Katabatic winds don't blow there. I thought the entire continent was pretty much consumed by these winds. Learn something new everyday.

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    1. Re:What about the Katabatic winds? by Shatrat · · Score: 4, Informative

      Katabatic winds are caused by cooling air moving downhill, so it seems to me that they would be the greatest around the shoreline and non-existent at the center.

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    2. Re:What about the Katabatic winds? by mbone · · Score: 3, Informative

      I would guess that it's at one of the high locations where the Katabatic winds start from. They're like avalanches, they aren't bad at the top, just at the bottom.

  10. Home on Ridge A by pavon · · Score: 5, Funny

    Oh, give me a home where the penguins roam
    And the frigid astronomers play
    Where seldom is heard a single word
    And the skies are not cloudy all day

    How often at night when the heavens are bright
    With the light from the glittering stars
    Have I stood there amazed and asked as I gazed
    If their glory exceeds that of ours

    Home, home on Ridge A
    And the frigid astronomers play
    Where seldom is heard a single word
    And the skies are not cloudy all day

    Where the air is so pure, the zephyrs so free
    The breezes so calm and light
    That I would not exchange my home on Ridge A
    For all of the cities so bright