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Thread: Betlegues look different to anyone?

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    Default Betlegues look different to anyone?



    As all of you know I haven't been doing this long but Orion is by far my favorite area. Tonight betlegues looks a little bigger alot more red than orange and brighter than I normally see it... Is this normal or is anyone else see the same?
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    Default Re: Betlegues look different to anyone?

    Stars look different depending on atmospheric conditions. When the atmosphere is turbulent, stars "twinkle" as the light from them is refracted by the atmosphere.The term for your ability to view objects depending on how much the atmosphere is in motion is "seeing."

    "Transparency" refers to the clarity of the sky and is affected by pollution, clouds, and moisture in the air. If the sky is especially transparent on a given night, a star might look bigger and brighter than the last time you saw it.

    The presence or absence of the Moon or other light pollution can also make a big difference. One of my favorite things about the recent lunar eclipse was to see the constellations gradually appear brighter and brighter as the Moon was cast into shadow.
    Mary


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    Default Re: Betlegues look different to anyone?

    Haha okay well I feel dumb now
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    Default Re: Betlegues look different to anyone?

    Well darn, I was hopeful for some supernova activity for the night. Not that I would be able to see it through the rain filled skies.
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    Default Re: Betlegues look different to anyone?

    Quote Originally Posted by Nomma View Post
    Haha okay well I feel dumb now
    No need to feel dumb! We are all learning!
    Mary


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    Default Re: Betlegues look different to anyone?

    Quote Originally Posted by Nomma View Post
    As all of you know I haven't been doing this long but Orion is by far my favorite area. Tonight betlegues looks a little bigger alot more red than orange and brighter than I normally see it... Is this normal or is anyone else see the same?
    Funny you should mention this because I was looking at Betelgeuse Sunday night and it looked more orange than red to me! I thought "That's weird!" but it makes sense it could be from atmospheric differences as explained by Voyageur.
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    Default Re: Betlegues look different to anyone?

    Quote Originally Posted by Voyageur View Post
    Stars look different depending on atmospheric conditions. When the atmosphere is turbulent, stars "twinkle" as the light from them is refracted by the atmosphere.The term for your ability to view objects depending on how much the atmosphere is in motion is "seeing."

    "Transparency" refers to the clarity of the sky and is affected by pollution, clouds, and moisture in the air. If the sky is especially transparent on a given night, a star might look bigger and brighter than the last time you saw it.

    The presence or absence of the Moon or other light pollution can also make a big difference. One of my favorite things about the recent lunar eclipse was to see the constellations gradually appear brighter and brighter as the Moon was cast into shadow.
    This is a wonderful explanation, Mary. Thank you.
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    Default Re: Betlegues look different to anyone?

    Quote Originally Posted by SpyderwerX View Post
    Well darn, I was hopeful for some supernova activity for the night

    Well, it's got to go sometime!
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    Default Re: Betlegues look different to anyone?

    Maybe you should start doing some spectroscopic analysis of Betelgeuse...maybe it is starting to expand and go Supernova !!!!!
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    Default Re: Betlegues look different to anyone?

    Very good info from Voyageur. One thing I keep in mind is that at zenith we're looking through over 20 miles of atmosphere and double that close to the horizon. One neat website that forecast seeing conditions at your location is "cleardarksky.com". There's a good description for how to interpret the forecast on the website. I took a look at the forecast near your location(At Brunswick, Ga) and indeed there was good viewing last few nights:



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