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The official Comet ISON observation thread

Discussion in 'Off Topic [BG]' started by hbarcat, Jul 19, 2013.

  1. hbarcat

    hbarcat Supporting Member

    Aug 24, 2006
    Rochelle, Illinois
    Astronomy geeks, dust off your pocket protectors and gather 'round. It's the official Comet ISON observation thread.

    Professional astronomers are predicting that this comet, which is currently outside the orbit of Jupiter, will be visible to the naked eye by autumn and then becomes as bright as the full moon when it skims within 2 million miles of the sun in late November. It should continue to put on a spectacular show in December and January and into February as it heads back out on its orbit to the frozen outer reaches of the solar system.

  2. hbarcat

    hbarcat Supporting Member

    Aug 24, 2006
    Rochelle, Illinois
  3. hbarcat

    hbarcat Supporting Member

    Aug 24, 2006
    Rochelle, Illinois
    John Bortle of Sky and Telescope magazine is predicting a far less spectacular appearance.

    So my forecast is that Comet ISON will develop more slowly in the autumn morning sky than initially thought. It won’t reach naked-eye detectability until around the 10th of November, about three weeks before rounding the Sun. It will brighten steadily but not exceed 2nd or 3rd magnitude before disappearing into the morning twilight just a week shy of its November 28th perihelion. At that time a short, not particularly bright tail should trail the comet’s intensifying coma.


  4. hbarcat

    hbarcat Supporting Member

    Aug 24, 2006
    Rochelle, Illinois
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  6. Hobobob

    Hobobob Don't feed the troll, folks. Supporting Member

    Jan 25, 2011
    Camarillo, CA
    This should be a really cool thing to see. I wouldn't even consider myself an amateur astronomer, but I love looking at stuff like this. Really gives you a sense of perspective on things.
  7. Relic

    Relic Cow are you?

    Sep 12, 2006
    Robbinsville, NJ
    My kids and I are ready. I'm looking forward to seeing this!
  8. Big B.

    Big B.

    Dec 31, 2007
    Austin, TX
    Been looking forward to seeing it. Awesome!

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