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Heckathorn-Fesen-Gull 1 (HFG1) and Abell 6 (Cas)
Click on the image for a larger version
| Date/Site: |
29., 30., 31. August and 1. September 2022. Remote observatory on the AAR club's site in Presberg |
Exposure/
Filter: |
R: 12 x 300 seconds,
G: 12 x 300 seconds,
B: 12 x 300 seconds,
Hα: 45 x 600 seconds,
O3: 30 x 600 seconds (-20°C) |
| Camera: |
Moravian G3-16200 mit Astronomik Type II-Filtern |
Optics/
Instrument: |
250mm f/4,7 Newton mit VIP-3010 Paracorr auf 10Micron GM1000 HPS |
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Guiding: ASI120 attached to a 61mm-finder,
Focusing with Microtouch and FocusMax,
Steuerung remote mit CCD-Commander, PHD_Broker mit PHD2/Multistar-Guiding and MaximDL 6,
Calibration and processing: MaximDL 6 and PixInsight 1.8 |
The planetaries Heckathorn-Fesen-Gull 1 and Abell 6 are neighbours in the constellation Cassiopeia.
The fast-moving binary star V664 Cas contains a white dwarf, which produced the planetary nebula HFG1. Where the fast moving gas meets the interstellar medium a shock wave is produced.
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© Friedhelm Hübner, last revision: 23.07.2025