A work in progress NGC891 from my red/white LP backyard. This is less than 2 hours of exposure. I am planning to add about 2-3 more hours of exposure. I find that at around 4 hours of total exposure SNR pretty much flattens out for my setup / location.
Make sure you click to see full resolution (detail is not very good due to limited exposure time and poor seeing but still interesting... don't forget to check out the spiral galaxy NGC898 at bottom right).
I am waiting for the mono version of this camera..
SQM: 18.5 - 18.7, seeing below average and neighbor's annoying lights.
EdgeHD 8 @ F7.3, ASI2600MC, no filters, guided with Metaguide and 50mm guidescope with ASI290MM.
120s x 55, Imaged at 0.52" / pixel, Processed with Astro Pixel Processor, Pixinsight and Topaz DenoiseAI.
Edited by Astrojedi, 04 December 2020 - 09:07 PM.