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Thread: Photometry

  1. #1
    Junior Member
    Join Date
    Dec 2017
    Posts
    1

    Photometry

    Hello.
    I am new to Astro Art.
    I have a newbie question:

    I have 3 files, taken with my Canon EOS 550D camera:

    IMG.cr2
    DARK.cr2
    FLAT.cr2

    Is there a description somewhere how to calculate the magnitude of "the star" in all 4 layers, when "the comparison star" is known?

    It is my impression that AstroArt can solve much more complicated tasks, but this is my first attempt.

    Yours

    Søren Toft
    Goetheanum
    Schweiz and Denmark

  2. #2
    Developer
    Join Date
    Apr 2012
    Posts
    499
    Hello, for a precise result the procedure is not simple (search for "DSLR photometry", then follow a generic tutorial).

    For an approximated result, once you have the corrected image (corrected for darks and flats, then debayered). Just use the command Color/Split RGB to access the R,G,B layers.
    Fabio.

  3. #3
    Søren, try asking at the danish astronomy forum here: https://www.astronet.dk

    On the good old no longer active Astro-Forum there are several threads about the topic. But I will recommend you join astronet.dk where there are several active AstroArt users ready to give advise.

    Old threads from inactive Astro-Forum;
    http://www.astro-forum.dk/forum_posts.asp?TID=15758
    http://www.astro-forum.dk/forum_posts.asp?TID=15902

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