My first go at the Helix Nebula, it's a dim object alright!
13 x 10 mins subs processed in Nebulosity / finished off in Photoshop.
Think my -20C 10 min master dark needs a revisit as this is a bit noisier than usual, maybe the warm conditions last night affected the usual -20C setpoint as it was only reading -14 on the SBIG control. I've cleaned it up a bit, but I mayhave to create new darks and reprocess this one again.
Is it normal procedure to create a library of time and temperature specific darks for different seasons?
Comments welcome
thanks for looking.
Andy