M3 globular cluster first attempt

[timh]

Very nice Menno.

There are choices all the way in processing these objects.

Aesthetically at least I prefer the coppery and purplish hues that you have in the star populations there. I had them more as cyan-blue and yellow-orange. It is often a choice I end up with and am never sure which is nearer to being objectively correct. The colour palette was set by a photometric colour calibration in PixInsight versus a standard galactic core 'white'. However there is more processing after that step in which colours can get mangled again. I do prefer the look of yours and for all I know it may be more nearly correct. You can calibrate what you see against the listed B-V numbers of listed stars as Oopfan suggested above--- but it would help to then have visible colour chart on the screen.

The other interesting choice with framing these objects - again as Oopfan pointed out there is a a star brightness range of at least 10000 fold - is just how much to compress the dynamic range down. I squashed the core right down to fit our screen range --but then of course it ends up really rather unrealistic.

TimH

[oopfan]

Fantastic, Menno! Great work.

Brian