Andromeda X
Galaxy in constellation Andromeda
Andromeda X | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Andromeda |
Right ascension | 01h 06m 33.9s |
Declination | +44° 48′ 16″ |
Apparent magnitude (V) | 16.1 |
Absolute magnitude (V) | -8.1 |
Characteristics | |
Type | dSph |
Apparent size (V) | 7 arcmin |
Notable features | satellite galaxy of the Andromeda Galaxy |
Other designations | |
And X, PGC 5056921 |
Andromeda X (And 10) is a dwarf spheroidal galaxy about 2.9 million light-years away from the Sun in the constellation Andromeda.[1] Discovered in 2005 by Zucker et al., And X is a satellite galaxy of the Andromeda Galaxy (M31). Aided by the application of stellar photometry to data from the Sloan Digital Sky Survey similar to the Andromeda IX discovery, the new finding indicates that this type of extremely faint satellite might be common in the Local Group, potentially providing further support for hierarchical cold dark matter models.[2]
See also
References
- ^ "Andromeda X". spider.seds.org. Retrieved 2022-04-06.
- ^ Zucker, Daniel B.; Kniazev, Alexei Y.; Martinez-Delgado, David; Bell, Eric F.; Rix, Hans-Walter; Grebel, Eva K.; Holtzman, Jon A.; Walterbos, Rene A. M.; Rockosi, Constance M.; York, Donald G.; Barentine, J. C. (2006-01-26). "Andromeda X, A New Dwarf Spheroidal Satellite of M31: Photometry". The Astrophysical Journal. 659: L21–L24. arXiv:astro-ph/0601599. doi:10.1086/516748. S2CID 1064929.
External links
- SEDS webpage for Andromeda X
- Andromeda X: Andromeda's Newest Satellite Galaxy
- v
- t
- e
Andromeda Galaxy → Andromeda subgroup → Local Group → Local Sheet → Virgo Supercluster → Laniakea Supercluster → Local Hole → Observable universe → Universe
Each → may be read as "within" or "part of".
Each → may be read as "within" or "part of".
- M32
- M110
- NGC 185
- NGC 147
- Andromeda I
- Andromeda II
- Andromeda III
- Andromeda IV*
- Andromeda V
- Andromeda VI
- Andromeda VII
- Andromeda VIII
- Andromeda IX
- Andromeda X
- Andromeda XI
- Andromeda XII
- Andromeda XIII
- Andromeda XIV
- Andromeda XV
- Andromeda XVI
- Andromeda XVII
- Andromeda XVIII
- Andromeda XIX
- Andromeda XX
- Andromeda XXI
- Andromeda XXII
- Andromeda XXIII
- Andromeda XXIV
- Andromeda XXV
- Andromeda XXVI
- Andromeda XXVII
- Andromeda XXVIII
- Andromeda XXIX
- Triangulum subgroup*
*It is uncertain whether these are companion galaxies of the Andromeda Galaxy
- Category
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