Astronomy:HFG1
From HandWiki
| Nebula | |
|---|---|
 Image of HFG1 from the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory | |
| Observation data: J2000 epoch | |
| Subtype | Planetary nebula |
| Right ascension | 3 2 58.62 |
| Declination | 64° 50' 10.92" |
| Constellation | Cassiopeia |
HFG1 is a very old planetary nebula located in the Constellation of Cassiopeia. The nebula was produced by V664 Cassiopeia, a binary star system.[1] The distinct fist-shape of this nebula comes from the star system moving rapidly across the galaxy and ramming into the interstellar medium, which creates a blue colored bowshock and a red colored trail.[1]
It was discovered in 1982 along with another nebula Abell 6. The HFG stands for Heckathorn-Fesen-Gull.[2]
References
- ↑ 1.0 1.1 "Planetary Nebula HFG1" (in en). https://www.noirlab.edu/public/images/noao-hfg1/.
- ↑ Massimo Difusco (October 23, 2023). "Abell 6 and HFG1 planetary nebulae in Cassiopeia" (in en-US). Sky & Telescope. https://skyandtelescope.org/online-gallery/abell-6-and-hfg1-planetary-nebulae-in-cassiopeia/. Retrieved 2025-08-07.
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