[alpal]

Originally Posted by E_ri_k

Thanks Allan. Yeah I'll grab some colour when the moon's new. Do you mean use my current data as the luminance layer, or the RGB?

Hi Erik,
You can use the Ha as a luminance layer.
You can also stack all the RGB frames together to make another luminance layer.
You can then combine them at various opacity's in Photoshop to see what looks best.
The stars will be bigger & more bloated in the RGB luminance
& there are tricks to get rid of them & use the Ha stars instead.
e.g. this is what I do -

http://www.astro-photography.net/Star-Removal.html

And also in Fitswork4 you can make stars smaller & then layer it back with the original to prevent hardened stars.


cheers
Allan