Ngc 6946

[Jim McMillan]

A couple of clear nights this week allowed me to do the luminance for 2 targets: NGC 6946 and M 33. Tonight I'm gathering some color data for both. I've dome some processing on NGC 6946.

L = 41 x 10 min, or almost 7 hrs.

I've left this image totally uncropped just to show how good the alignment was over 2 nights of imaging and 2 flips, which includes using a rotator.

I experimented by adding some star spikes in Photoshop Elements via Astronomy Tools v1.6. The issue is on an ST8E (and maybe others) bright stars cause a reflection between the chip surface and the chip cover - causing them to look pretty ugly. I think the star spikes help cover the problem up.

Hopefully, I'll be able to add the color data soon.

Jim