NGC 2903 LRGB Still WIP

[DaveS]

But getting there slowly.

This is 8 subs RGB Bin 2 in G2v calibration from last night combined with 6 hours Bin 1 Luminance from last year. Sigma-Sum stacked in AA8 with Darks, Flats and Dark Flats. Calibration frames given Sigma stacking as well. Last year's data given a new stacking with the same treatment. Each stack upscaled before co-registering with the Luminance. Then Trichromy, LRGB synthesis cropping and final gradient removal before denoising.

Saved as a PNG

Needs a lot more data, mainly RGB so sigma stacking can get rid of Stinking Musk's garbage. Plus there is some odd Red and Green "scruff" within the galaxy that I don't know the origin of.

Any other C&C welcome.

[Nugs]

Haven't got a scooby what you said in your post....... but its a great image. 👏

[DaveS]

I've had a look at the individual stacks and can see that scruff on all the R, G, and B stacks moving down from top to bottom as the sequence ran, Red, then Green, then Blue the random nature is partly due to dithering. This suggests some kind of light ingress, the sharpness also suggests that it's distant enough to be nearly in focus. It cannot be stationary on earth as the line would be much longer.

It isn't on the Luminance stack, but the L stack had 36 subs giving AstroArt a better chance of eliminating rogue data points with Sigma Stacking.

Top to bottom on the sensor in this orientation is along the RA axis.

I might suspect something bright in near geostationary orbit, but what?

Any suggestions would be gratefully received!

[alan potts]

Considering what you have this is a wonderful start, must look for the finished item.

Alan

[DaveS]

Current best guess is that I captured a slow moving asteroid.