Pisces B (Psc B) is a void dwarf galaxy. It is located in the Local Void, near Pisces A; and is in the Pisces constellation. It is 30 million light-years (9.2 megaparsecs) away from the Earth.[2] The galaxy was discovered with the WIYN Observatory. About 100 million years ago, the galaxy started moving out of the void and into the local filament zone and denser gaseous environment. This sparked off a doubling of the rate of star formation.[3]
| Pisces B | |
|---|---|
 Hubble Space Telescope image of Pisces B | |
| Observation data (J2000.0[1] epoch) | |
| Constellation | Pisces |
| Right ascension | 01h 19m 11.700s[1] |
| Declination | +11° 07′ 18.22″[1] |
| Heliocentric radial velocity | 620.7 ± 0.2[1] |
| Distance | 30 Mly (9.2 Mpc)[2] |
| Other designations | |
| Pisces B,[1] PSC B, GALFA-Dw2[1] | |
References
edit- ^ a b c d e f "[TGG2015] Pisces B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-10-28.
- ^ a b "Hubble Sees Two Dwarf Galaxies in Pisces". Sci-News. 15 August 2016.
- ^ "Hubble uncovers a galaxy pair coming in from the wilderness". Science Daily. 11 August 2016.
Further reading
edit- Erik J. Tollerud; Marla C. Geha; Jana Grcevich; Mary E. Putman; Daniel R. Weisz; Andrew E. Dolphin (22 December 2015). "HST Imaging of the Local Volume Dwarf Galaxies Pisces A and B". The Astrophysical Journal. 827 (2) (published 11 August 2016): 13. arXiv:1607.03487. Bibcode:2016ApJ...827...89T. doi:10.3847/0004-637X/827/2/89. S2CID 118804470. 89.
