Cave Nebula (Sharpless 2-155)

[Hallingskies]

A result of 40 x 250s exposures in H-alpha, binned 2x2, from the evening of November 2nd/3rd. I nearly literally "binned" the results of the whole session once I transferred the images back indoors, as some of the stars had the dreaded "doughnuts".  I really struggled with the focus that evening for some reason, and I eventually ran out of patience - always an error! However, after a play with the Digital Development and Lucy Richardson deconvolution (using a mild Gaussian PSF) functions in Astroart, it didn't turn out too bad,  Still a bit mushy, but better than nothing I guess...

[laser_jock99]

I'd be happy with that- good effort.