| M60-UCD1 | |
|---|---|
 A picture of M60-UCD1 taken by the Hubble Space Telescope | |
| Observation data (J2000.0 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 43m 35.976s[1] |
| Declination | 11° 32m 4.92s[1] |
| Redshift | 0.004263±0.0[2] |
| Heliocentric radial velocity | 1,278±0 km/s[2] |
| Galactocentric velocity | 1,229±2 km/s[2] |
| Distance | 48.60 ± 3.262 Mly (14.9 ± 1.0 Mpc)h−1 0.6774 (Comoving)[2] |
| Group or cluster | M60 Group |
| Apparent magnitude (V) | 14.2[1] |
| Characteristics | |
| Mass | (2.0±0.3)×108 (dynamical mass)[1] M☉ |
| Size | 158 ± 3.26 ly (48.4 ± 1.0 pc) (Half-light diameter)[1] |
| Half-light radius (physical) | 78.9 ± 1.63 ly (24.2 ± 0.5 pc)[1] |
| Other designations | |
| M60-UCD1, SDSS J124335.96+113204.6[3] | |
References: [3] | |
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M60-UCD1 is an ultracompact dwarf galaxy. It is 49 million light years from Earth, close to Messier 60 (M60, NGC 4649) in the Virgo Cluster. Half of its stellar mass is in the central sphere 160 light years in diameter.[4]
- ^ a b c d e f Strader, J.; et al. (2013). "The Densest Galaxy". The Astrophysical Journal. 775: L6. arXiv:1307.7707. Bibcode:2013ApJ...775L...6S. doi:10.1088/2041-8205/775/1/L6.
- ^ a b c d "Detailed Information for Object ESO 97-G13". NASA/IPAC Extragalactic Database. Retrieved September 16, 2023.
- ^ a b "NAME M60-UCD1". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-19.
- ^ "Astronomers Discover Densest Galaxy Ever". ScienceDaily. Retrieved 26 September 2013.