The Milky Way Galaxy has several smaller galaxies gravitationally bound to it, as part of the Milky Way subgroup. This subgroup is part of the local galaxy cluster, the Local Group.
The Milky Way's satellite galaxies include the following:
Name (in distance) |
Diameter (kpc) | Distance (kpc) |
Type | Discovered | |
---|---|---|---|---|---|
I | Canis Major Dwarf | 1.5 | 8 | Irr | 2003 |
II | Sagittarius Dwarf | 2 | 20 | E | 1994 |
III | LMC | 4 | 48.5 | SBm | prehistoric |
IV | SMC | 2 | 61 | Irr | prehistoric |
V | Ursa Major II Dwarf | 0.2 | 30 | dG D | 2006 |
VI | Ursa Minor Dwarf | 0.4 | 60 | dE4 | 1954 |
VII | Draco Dwarf | 0.7 | 80 | dE0 | 1954 |
VIII | Sculptor Dwarf Galaxy | 0.8 | 90 | dE3 | 1937 |
IX | Sextans Dwarf | 0.5 | 90 | dE3 | 1990 |
X | Carina Dwarf | 0.5 | 100 | dE3 | 1977 |
XI | Ursa Major I Dwarf | - | 100 | dG D | 2005 |
XII | Fornax Dwarf | 0.6 | 140 | dE2 | 1938 |
XIII | Leo II | 0.7 | 210 | dE0 | 1950 |
XIV | Leo I | 0.5 | 250 | dE3 | 1950 |
? | Leo IV | 0.3 | 160 | dSph | 2006 |
? | Leo V | 0.08 | 180 | dSph | 2007 |
? | Leo T | 0.34 | 420 | dSph/dIrr | 2006 |
? | Boötes I | 0.3 | 60 | dSph | 2006 |
? | Boötes II | 0.1 | 42 | dSph | 2007 |
? | Boötes III | 1 | 46 | ? | 2009 |
? | Coma Berenices | 0.14 | 42 | dSph | 2006 |
? | Segue 2 | 0.07 | 35 | dSph | 2007 |
? | Canes Venatici I | 2 | 220 | dSph | 2006 |
? | Canes Venatici II | 0.3 | 155 | dSph | 2006 |
? | Hercules | 0.7 | 135 | dSph | 2006 |
? | Pisces II | 0.12 | 180 | ? | 2010 |
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