User:CYl7EPTEMA777/List of Triangulum's suspected satellite galaxies
At the moment Triangulum Galaxy (M33) not have proven satellite galaxies, but likely it has their satellite galaxies. Triangulum Galaxy and its satellites constitute Triangulum subgroup
Andromeda XXII is located much closer in projection to M33 than M31 [42 kiloparsecs (140 kly) vs. 224 kiloparsecs (730 kly)]. This fact suggests that it might be the first Triangulum (M33) satellite ever discovered. However, it is currently catalogued as a satellite of Andromeda (M31).[1]
Pisces Dwarf is an irregular dwarf galaxy that is part of the Local Group. The galaxy is also suspected of being a satellite galaxy of the Triangulum Galaxy.[2]
Andromeda II (And II) is a dwarf spheroidal galaxy about 2.22 Mly away in the constellation Andromeda. It is part of the Local group of galaxies and is a satellite galaxy of the Andromeda Galaxy (M31) but it's also situated closely to the Triangulum Galaxy (M33), it is not quite clear if it is a satellite of the one or the other galaxy.
Table of galaxies in triangulum subgroup
edit| Name | Type | Distance from Sun (million ly) |
Magnitude | Year discovered |
|---|---|---|---|---|
| Triangulum Galaxy | SA(s)cd | 14.2 | +6.27 | 1654? |
| Triangulum I (Andromeda XXII) | 2009 | |||
| Pisces Dwarf | dIrr/dSph | 2.51 | 1676 | |
| Andromeda II | dSph | 2.13 | +13 | 1970 |
References
edit- ^ Nicolas F. Martin, Alan W. McConnachie, Mike Irwin, Lawrence M. Widrow, Annette M. N. Ferguson, Rodrigo A. Ibata, John Dubinski, Arif Babul, Scott Chapman, Mark Fardal, Geraint F. Lewis, Julio Navarro, R. Michael Rich; "PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies"; The Astrophysical Journal, Volume 705, Issue 1, pp. 758-765 (2009); doi:10.1088/0004-637X/705/1/758; Bibcode:2009ApJ...705..758M; arXiv:0909.0399;
- ^ McConnachie, A. W.; Irwin, M. J.; Ferguson, A. M. N.; Ibata, R. A.; Lewis, G. F.; Tanvir, N. (2005). "Distances and metallicities for 17 Local Group galaxies". Monthly Notices of the Royal Astronomical Society. 356 (4): 979–997. arXiv:astro-ph/0410489. Bibcode:2005MNRAS.356..979M. doi:10.1111/j.1365-2966.2004.08514.x.
{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: unflagged free DOI (link)
| Location | Triangulum Galaxy → Triangulum subgroup →
Local Group → Local Sheet → Virgo Supercluster → Laniakea Supercluster → Local Hole → Observable universe → Universe Each arrow (→) may be read as "within" or "part of". | |
|---|---|---|
| H II regions | ||
| Suspected satellite galaxies | ||