Clamshell nebula Sh2-119

[carastro]

Haven't done any imaging for a couple of months as not set up for small galaxies. and can't do narrowband from home (Bortle 8).
Also, I seem to have done all the popular nebulae that I can do from home, so am now doing the less well known, but fainter targets.  This is the Clamshell Nebula (to the left of the North America nebula). 

I did take some Oiii and Sii but could not find any signal at all in Oiii and Sii was only faint, so didn't show up when combining with Ha, so I processed as HaRGB. 

Samyang lens and Atik460EX on HEQ5
Ha 13 x 900 (3h 15m
RGB 11 x 125secs binned x 2 @ 23mins each
Total imaging time 3hours 24mins

Edited June 7, 2021 by carastro

[carastro]

I decided to have a go at SHO using Olly's method of "Bringing out the faint stuff" (using Photoshop's equalise function) and have managed to get enough to produce an image.  Unfortunately though I hadn't got much data with Sii and Oiii as I had given up and decided to go for HaRGB instead.

Ha 13 x 900
Oiii 4 x 450binned
Sii 2 x 450 binned
I know I should have got more Oiii and Sii, but was so disappointed with so little data showing I gave up and went for HaRGB instead.
But today i decided to "have a go" and see what I could do with SHO and the equalize function.

Samyang 135mm lens @ f2.8 and Atik460EX Baader filters on HEQ5