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Contains:  NGC 6946
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NGC-6946 (Fireworks Galaxy), 


            Joel Shepherd
NGC-6946 (Fireworks Galaxy)

NGC-6946 (Fireworks Galaxy)

Technical card

Resolution: 1600x1399

Dates:June 30, 2019July 8, 2019July 11, 2019July 19, 2019July 20, 2019July 21, 2019July 25, 2019

Astrodon 5nm H-alpha: 12x600" bin 1x1
Baader Planetarium B 1.25": 70x180" bin 1x1
Baader Planetarium G 1.25": 70x180" bin 1x1
Baader Planetarium R 1.25": 70x180" bin 1x1

Integration: 12.5 hours

Avg. Moon age: 17.09 days

Avg. Moon phase: 61.03%

Bortle Dark-Sky Scale: 6.00 job: 2858423

RA center: 20h 34' 50"

DEC center: +60° 9' 25"

Pixel scale: 1.185 arcsec/pixel

Orientation: 289.121 degrees

Field radius: 0.350

Locations: Home, Seattle, WA, United States

Data source: Backyard


The Fireworks Galaxy has been on my todo list for several years, but this summer was the first time the weather, travel plans, forest fires and all finally aligned themselves to make it a viable project. Nights are short here in the summer, so this took a number of nights of collecting relatively small slices of data under varied conditions. Now I feel like I've just come home from a first date with someone I've had a crush on for a while: glad the date went well, but not sure whether I like the real thing or the idealized thing that I imagined more. ;-)



Joel Shepherd
License: Attribution Creative Commons

Sky plot

Sky plot


NGC-6946 (Fireworks Galaxy), 


            Joel Shepherd