Had a go at a BOSS SN, this one from the past few weeks....
I thought I'd try much shorter exposures, and do a bunch more of them, this is 56x1min L only. I took 97 exposures, but had a tough time with fluctuating temperature/focus.
200mm f/4 newt, Atik 420. Captured with Sequence Generator Pro, processed Nebulosity and StarTools.
