Photometry

[Forum_2018]

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

[Forum_2018]

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.

[Forum_2018]

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On the good old no longer active Astro-Forum there are several threads about the topic.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