Astronomy:Pisces A
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Coordinates: 
00h 14m 46.000s, +10° 48′ 47.01″
Short description: Void dwarf Galaxy in the constellation Pisces
| Pisces A | |
|---|---|
 Hubble Space Telescope image of Pisces A | |
| Observation data (J2000.0[1] epoch) | |
| Constellation | Pisces |
| Right ascension | 00h 14m 46.000s[1] |
| Declination | +10° 48′ 47.01″[1] |
| Distance | 18.4 Mly (5.64 Mpc)[2] |
| Absolute magnitude (V) | −11.57+0.06 −0.05[2] |
| Characteristics | |
| Mass | 1×107[2] M☉ |
| Size | 145+5 −6[2] pc |
| Other designations | |
| Pisces A,[1] PSC A, GALFA-Dw1[1] | |
Pisces A (Psc A) is a void dwarf galaxy. It is located in the Local Void, near Pisces B; and is in the Pisces constellation. It is 18.4 million light-years (5.64 megaparsecs) away from 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]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 "[SCB2015 GALFA-Dw1"]. SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=%5BSCB2015%5D+GALFA-Dw1.
- ↑ 2.0 2.1 2.2 2.3 2.4 Tollerud, Erik J; Geha, Marla C; Grcevich, Jana; Putman, Mary E; Weisz, Daniel R; Dolphin, Andrew E (2016). "Hstimaging of the Local Volume Dwarf Galaxies Pisces A and B: Prototypes for Local Group Dwarfs". The Astrophysical Journal 827 (2): 89. doi:10.3847/0004-637X/827/2/89. Bibcode: 2016ApJ...827...89T.
- ↑ "Hubble uncovers a galaxy pair coming in from the wilderness". Science Daily. 11 August 2016. https://www.sciencedaily.com/releases/2016/08/160811142637.htm.
Further reading
- Carignan, C; Libert, Y; Lucero, D. M; Randriamampandry, T. H; Jarrett, T. H; Oosterloo, T. A; Tollerud, E. J (2016). "HI observations of two new dwarf galaxies: Pisces A and B with the SKA Pathfinder KAT-7". Astronomy & Astrophysics 587: L3. doi:10.1051/0004-6361/201527910. Bibcode: 2016A&A...587L...3C.
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