Andromeda XI (And 11) is a dwarf spheroidal galaxy about 2.6 million light-years away from the Sun[2] in the constellation Andromeda.[4] Discovered in 2006,[2] And XI is a satellite galaxy of the Andromeda Galaxy (M31).
| Andromeda XI | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 00h 46.3m [1] |
| Declination | +33° 48′ 05″[1] |
| Redshift | -0.001399 ± 0.000015[1] |
| Heliocentric radial velocity | (-419 ± 4.4) km/s[1] |
| Distance | 2.6 ± 325 Mly (830 kpc)[2] |
| Absolute magnitude (V) | −7.3[3] |
| Characteristics | |
| Type | dSph D[1] |
| Apparent size (V) | 0.5 arcmin[4] |
| Notable features | satellite galaxy of the Andromeda Galaxy |
| Other designations | |
| And XI, PGC 5056923 | |
See also
edit
References
edit- ^ a b c d e "NAME Andromeda XI". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-11-03.
- ^ a b c "The Galaxies of the Local Group". Retrieved 2017-11-03.
- ^ Yang, S.-C; Sarajedini, A (2012). "HST/WFPC2 Imaging of the Dwarf Satellites And XI and And XIII : HB Morphology and RR Lyraes". Monthly Notices of the Royal Astronomical Society. 419 (2): 1362. arXiv:1109.2038. Bibcode:2012MNRAS.419.1362Y. doi:10.1111/j.1365-2966.2011.19792.x. S2CID 119190619.
- ^ a b "Andromeda XI". Retrieved 2017-11-03.