Crescent Nebula Test

I used a 60 min Ha for my lum and then added some color; 10 minutes each.

No Subtractions but I did play with it a lot in CS

I did not mess with the green line to the upper right of the nebula and have know idea what caused it. It is in the HA and color channels??? :S

If you mess with the saturation in PS it shows up as a funky green beam .


Suggestions welcome

Attached Image:

Anyone around you got a green laser?

Tom

I don't know how that got there, John, but, rather than being a 'green' thing, I think it might be related to the red and blue channels. Your green channel looks okay, but the red and blue channels show anomalous dark areas there. When that's happened to me, it was usually something I messed up in the calibration sequence.
An examination of your raw subs will show if the dark areas are real or not. Looking at your exposures after each processing step will show an obvious misstep.
You might want to reset your black points, too, they're a little off.
Hope this helps,

dan

Very nice shot John!well done.