The Fireworks Galaxy and an Open Cluster
NGC 6946, or "The Fireworks Galaxy", is one of a ~dozen nearby neighbors to the Milky Way. The galaxy, is a 9th magnitude face-on spiral galaxy positioned on the border between Cepheus and Cygnus.
At ~22.5 Million light-years it's one of the nearest galaxies outside of the Local Group. In the past 100 years, 9 supernovae have been observed in NGC 6946, hence the nickname the Fireworks Galaxy!
I so enjoy capturing photons from two different objects and this photo contains a lovely open cluster, NGC 6939. Discovered by William Herschel in 1798, it contains some ~630 stars. With the use of photometric studies, the age of the cluster was estimated to be between 1,0 and 1,3 billion years
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The Fireworks Galaxy and Open Cluster NGC 6939 |
This is one of my favorite photos even though it could use another hour of data. I may go back and add some to it.
Technical Info:
Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL
Explore Scientific 2" HR Coma Corrector
Camera: ZWO ASI533MC Pro
Filter: 2" Optolong L-Pro
Mount: Losmandy GM8
Guiding: QHY Mini Guide Scope + PHD2 Software
Acquisition: Sequence Generator Pro
Exposure: Light (Gain 100) - 57 subs @ 120 Seconds
Calibration: 50 Bias, 30 Darks, 0 Flats
Processing: Deep Sky Stacker, Adobe Photoshop, Topax Denoise AI, Astronomy Action Set plug in for PS, Astro Flat Pro plug in for PS
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