NGC 6946 (Fireworks Galaxy) and NGC 6939
Photo description / processing
The Fireworks Galaxy (NGC 6946) is 22 million light-years away from us and has a diameter of about 40,000 light-years. The galaxy's angular size is 11.5'x9.5'. NGC 6939 is an open star cluster 3,900 light-years away from us, consisting of approximately 500 stars, and looks like scattered diamond dust! The cluster's angular size is 9'x9'. Both objects are, without a doubt, like two pearls in the crown of the constellation Cepheus! Captured in one night in monochrome, in RGB format.
Technical information
- Telescope/Lens
- Sharpstar 130/2.8
- Camera
- ZWO ASI183MM Pro
- Mount
- Ioptron HAE 29
- Guide Scope
- ZWO 30mm f/4 Guide Scope
- Guide Camera
- SVBONY SV905C
- Software
- SharpCap, Siril
- Location
- Петушки, Владимирская область, Russia
Light pollution
Red, Bortle 7 zone
- Date taken
Exposure
- 34 × 120″ · ISO/Gain: 120 · zwo R ·
- 28 × 120″ · ISO/Gain: 120 · zwo G ·
- 28 × 120″ · ISO/Gain: 120 · zwo B ·
Total exposure: 3 h 0 m









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