Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Fireworks Galaxy  ·  NGC 6946
NGC 6946 "Fireworks Galaxy", Jesco
NGC 6946 "Fireworks Galaxy"
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NGC 6946 "Fireworks Galaxy"

NGC 6946 "Fireworks Galaxy", Jesco
NGC 6946 "Fireworks Galaxy"
Powered byPixInsight

NGC 6946 "Fireworks Galaxy"

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Description

This is the result from three nights. It’s amazing to see how fast you can swamp the readnoise with the ASI533MC. The sensitivity seems to be roughly 4x that of my old Nikon D3400. And I have the uncooled model!

I had to toss 40% of my frames from twining the nights due to wind and clouds. The HEQ5 is small for a C8 after all and it wasn’t the best weather.

My first try of Bill Blanshan‘s star reduction scripts. Wow.

Now my only remaining wish is better seeing. It’s always 3“ at my place. Rarely it’s 2.5“ and similar rarely it’s 3.5“. Kind of boring.

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    NGC 6946 "Fireworks Galaxy", Jesco
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NGC 6946 "Fireworks Galaxy", Jesco