Abell 31 (PK 219 + 31.1 or Sharpless 290)
Photo description / processing
Abell 31 (PK 219 + 31.1 or Sharpless 290) is one of the largest observable planetary nebulae, located in the constellation Cancer. The visible diameter is about 970", which almost corresponds to the diameter of the famous Helix Nebula (NGC 7293).
L-channel - 26 x 300 sec. bin 1x1;
R-channel - 10 x 600 sec. bin 1x1;
G-channel - 10 x 600 sec. bin 1x1;
B-channel - 10 x 600 sec. bin 1x1;
Ha- 30 x 900 sec. bin 2x2;
OIII- 26 x 900 sec. bin 2x2.
Total integration time - 21:10 hours.
Technical information
- Telescope/Lens
- Celestron CPC 800 GPS XLT
- Camera
- Starlight Xpress Trius SX-694
- Mount
- Equatorial Wedge
- Guide Scope
- Baader Guide Scope 61/250
- Guide Camera
- ZWO ASI120MM
- Accessories
- Starizona 0.75x Reducer, Astrodon LRGB E-Series Gen. 2 Filter Set, Astrodon 5nm H-alpha Filter, Astrodon 3nm OIII Filter
- Software
- MaxIm DL, PHD2, Pixinsight, StarTools, Adobe Photoshop, Zoner Photo Studio 14
- Location
- Chervonograd, Ukraine
Light pollution
Yellow, Bortle 5 zone
- Date taken
Exposure
- 26 × 300″ · ISO/Gain: 0 · Astrodon L ·
- 10 × 600″ · ISO/Gain: 0 · Astrodon R ·
- 10 × 600″ · ISO/Gain: 0 · Astrodon G ·
- 10 × 600″ · ISO/Gain: 0 · Astrodon B ·
- 30 × 900″ · ISO/Gain: 0 · Astrodon Ha 5nm ·
- 26 × 900″ · ISO/Gain: 0 · Astrodon OIII 3nm ·
Total exposure: 21 h 10 m
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Wishing you success in capturing the past in the present :)
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