M33 Galaxy - 96% Moon!

Yes, another M33! Inevitable at this time of year. 96% Moon!!

This was my first clear night in weeks but of course it coincided with a pretty much full Moon. Back in the year I bought an Altair Astro Tri-Band OSC filter which I had not had occasion to use so thought I'd give it a go. I couldn't find many examples taken with this filter so it was an unknown quantity. Quite pleased with the result.

A bit noisy and there were severe 'light pollution' gradients which required processing persistence to eradicate. APP's light pollution removal tool was excellent but not 100% so the remainder was removed manually in Affinity Photo. I thought processing would be quite involved but APP has a setting for this filter type which made it very straight forward.

Nice to know that I can now make use of those clear but Moon filled nights!!

x13, 300 second exposures along with calibration frames.

SkyWatcher 25cm f4 Quattro. Belt modded EQ6. QHY8L OSC camera.

Capture software. APT, PHD2, Cartes De Ciel.

Processing sofware. AstroPixelProccesor, Affinity Photo. Topaz Denoise.

Done