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Thread: Planetary triple play Sunday 12/10

  1. #1
    Senior Member Rick's Avatar
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    Planetary triple play Sunday 12/10

    Saw thisand thougth it might be worthwhile to look for tomorrow AM.
    ==============================
    Planetary triple play on deck Sunday By SETH BORENSTEIN, AP Science Writer
    Fri Dec 8, 8:14 PM ET

    CAPE CANAVERAL, Fla. - Stargazers will get a rare triple planetary treat this weekend with Jupiter, Mercury and Mars appearing to nestle together in the predawn skies. About 45 minutes before dawn on Sunday those three planets will be so close that the average person's thumb can obscure all three from view.

    They will be almost as close together on Saturday and Monday, but Sunday they will be within one degree of each other in the sky. Three planets haven't been that close since 1925, said Miami Space Transit Planetarium director Jack Horkheimer.

    And it won't happen again until 2053, he said.

    "Jupiter will be very bright and it will look like it has two bright lights next to it, and they won't twinkle because they're planets," said Horkheimer, host of the television show "Star Gazer. "This is the kind of an event that turns young children into Carl Sagans."

    The planets are actually hundreds of millions of miles apart, but the way the planets orbit the sun make it appear they are neighbors in the east-southeastern skies. They'll be visible in most parts of the world — in the Western Hemisphere, as far south as Buenos Aires and as far north as Juneau, Alaska, Horkheimer said.

    The experts differ on just how to look at the planets. Horkheimer said naked-eye viewing is fine, but binoculars or a telescope are even better.

    But if you are going to use a telescope, be careful because the planets are so close to where the sun will soon rise, if you linger you might gaze at the sun through the telescope and damage your eyesight, said Michelle Nichols, master educator at Chicago's Adler Planetarium.

    Ed Krupp, director of Los Angeles' Griffith Observatory, cautioned it will be hard to see the event "with an unaided eye, particularly in an area that is highly urbanized."

    The way to find the planets, which will be low on the east-southeast horizon, is to hold your arm straight out, with your hand in a fist and the pinky at the bottom. Halfway up your fist is how high the planets will appear above the horizon, Nichols said.

    Jupiter will be white, Mercury pinkish and Mars butterscotch-colored.

    "It is a lovely demonstration of the celestial ballet that goes on around us, day after day, year after year, millennium after millennium," said Horkheimer. "When I look at something like this, I realize that all the powers on Earth, all the emperors, all the money, cannot change it one iota. We are observers, but the wonderful part of that is that we are the only species on this planet that can observe it and understand it."

    In ancient times, people thought the close groupings of planets had deep meaning, said Krupp. Now, he said, "it's absolutely something fun to look for."
    Rick

  2. #2
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    Thanks for the heads-up, I'll definitely be out watching.
    Hmm...the view from Riga would be good.

  3. #3
    Senior Member w7xman's Avatar
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    as an added bonus...there is a good chance for aurora activity tonight...

  4. #4
    Senior Member Nessmuk's Avatar
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    spaceweather

    Good catch Rick. Spaceweather.com is the place to go to see the latest auroral information. Today there's a nice sky map graphic of what tomorrow morning's sky will look like with the positions of planets in the morning glow.
    Last edited by Nessmuk; 12-09-2006 at 04:54 PM.
    "She's all my fancy painted her, she's lovely, she is light. She waltzes on the waves by day and rests with me at night." - Nessmuk, Forest and Stream, July 21, 1880 [of the Wood Drake Canoe built for him by Rushton]

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    Member escapee's Avatar
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    Saw this Sunday AM from 4 miles off New Jersey Coast. Clear sky, just a streak of clouds, as flat a horizon as you'll find. Beautiful! Thanks for the heads up.
    "Open the pod bay doors, HAL."

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