UGC 9405 (also known as PGC 52142) is a faint dwarf irregular galaxy situated in the constellation of Ursa Major. It is about 20.5 million light-years, or 6.3 megaparsecs, away from the Earth.[3] It is listed as a member of the M101 Group, a group containing the several galaxies orbiting the largest, Pinwheel Galaxy (M101).[5] However, due to its far distance from the Pinwheel Galaxy, its membership of the group is uncertain.[3]
| UGC 9405 | |
|---|---|
 Dwarf galaxy UGC 9405 taken by the Hubble Space Telescope. | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 14h 35m 24.077s[1] |
| Declination | +57° 15′ 21.24″[1] |
| Redshift | 0.000741[2] |
| Heliocentric radial velocity | 222 ± 7 km/s[2] |
| Distance | 20.5 ± 1.2 Mly (6.30 ± 0.38 Mpc)[3] |
| Apparent magnitude (V) | 14.08[4] |
| Apparent magnitude (B) | 15.39[4] |
| Characteristics | |
| Type | I[4] |
| Other designations | |
| MCG +10-21-013, PGC 52142[2] | |
References edit
- ^ a b Adelman-McCarthy, J. K.; et al. (2009). "VizieR Online Data Catalog: The SDSS Photometric Catalog, Release 7". VizieR On-line Data Catalog. Bibcode:2009yCat.2294....0A.
- ^ a b c "UGC 9405". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-03-19.
- ^ a b c Carlsten, Scott G.; Beaton, Rachael L.; Greco, Johnny P.; Greene, Jenny E. (2019). "Using Surface Brightness Fluctuations to Study nearby Satellite Galaxy Systems: The Complete Satellite System of M101". The Astrophysical Journal. 878 (1): L16. arXiv:1901.07578. Bibcode:2019ApJ...878L..16C. doi:10.3847/2041-8213/ab24d2. S2CID 119089770.
- ^ a b c "Search specification: UGC 9405". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-03-19.
- ^ "The M101 group of galaxies". www.messier.seds.org. Retrieved 2020-04-26.