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Thread: Double Star Color Real & Perceived - Good read from Bob King

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    Default Double Star Color Real & Perceived - Good read from Bob King



    Found this article on the color of Double Stars from Bob King (on the S&T web site) very interesting.
    The interesting things the human vision system does explains a great number of observational differences.
    A list of doubles to observe listed with their spectral class will indicate how an individual perceives color. (if there is such a thing )

    Colored Double Stars, Real and Imagined - Sky & Telescope

    It puts me in mind of Poe:
    All that we see or seem
    Is but a dream within a dream.

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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Cool article, Steve. Thanks for the link!
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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Thanks for sharing the article.
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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Interesting. I have always viewed Albireo as a gold-blue pair, and was surprised at the lack of apparent color when I did a test image of the pair one night. This article helps explain why that may happen. Thanks for sharing it.

    Bob
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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Nice read! Be sure to check out the additional resources as well...some nice color contrasting targets!! So much to see...so little time

    Dave
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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    interesting - thanks for sharing
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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Quote Originally Posted by bobharmony View Post
    Interesting. I have always viewed Albireo as a gold-blue pair, and was surprised at the lack of apparent color when I did a test image of the pair one night. This article helps explain why that may happen. Thanks for sharing it.

    Bob
    Hi Bob. I had a similar experience a few weeks ago. I've viewed Albireo many times with my AD12 and have always noted a fine blue and orange pair of jewels hanging in the sky.

    When I pointed my new AR127 at the pair, I got an orange and white pairing. It took me a bit to convince myself I was sitting on Albireo. Quite an interesting difference between the two scopes.
    Bryan

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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    That is very interesting. That is also something to keep in mind when logging double star observations.
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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Quote Originally Posted by sketrip View Post
    Found this article on the color of Double Stars from Bob King (on the S&T web site) very interesting.
    The interesting things the human vision system does explains a great number of observational differences.
    A list of doubles to observe listed with their spectral class will indicate how an individual perceives color. (if there is such a thing )

    Colored Double Stars, Real and Imagined - Sky & Telescope

    It puts me in mind of Poe:
    All that we see or seem
    Is but a dream within a dream.

    SKE
    Surprised they did not mention the most famous case of this. Antares companion is universally described as green (although green stars are impossible) and its spectra suggests it is a cool blue.

    I also recall years ago Mars got within a half a degree or so of Spica, and during the encounter I was surprised how green Spica seemed to have become with naked eye observing
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    , various other bits and bob.

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    Default Re: Double Star Color Real & Perceived - Good read from Bob King

    Great link Steve thanks for sharing it.
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