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The Local Group is the group of galaxies that includes our galaxy, the Milky Way. The group comprises over 30 galaxies, with its gravitational center located somewhere between the Milky Way and the Andromeda Galaxy. The galaxies of the Local Group cover a 10 million light year diameter (see 1 E23 m for distance comparisons). The group belongs to the Virgo Supercluster.
The two most massive members of the group are the Milky Way and the Andromeda Galaxy. These two spirals each have a system of satellite galaxies. The Milky Way's satellite system consists of Sag DEG, Large Magellanic Cloud, Small Magellanic Cloud, Canis Major, Ursa Minor, Draco, Carina, Sextans, Sculptor, Fornax, Leo I, Leo II and Tucana. Andromeda's system comprises M32, M110, NGC 147, NGC 185, And I, And II, And III and And IV. M33, the third largest galaxy in the Local Group may or may not be a companion to the Andromeda galaxy but probably has LGS 3 as a satellite. The other members of the group are gravitationally secluded from these large subgroups.
Spiral galaxies
Milky Way
Andromeda Galaxy (M31, NGC 224) - type Sb in Andromeda
Triangulum Galaxy (M33, NGC 598) - type Sc in Triangulum
Elliptical galaxies
M110 (NGC 205) - type E6p in Andromeda
M32 (NGC 221) - type E2 in Andromeda
Irregular galaxies
Wolf-Lundmark-Melotte (WLM, DDO221) - type Ir+ in Cetus
IC 10 - type KBm or Ir+ in Cassiopeia
Small Magellanic Cloud (SMC, NGC 292) - SB(s)m pec in Tucana
Pisces Dwarf (LGS3) - type Irr in Pisces
IC 1613 (DDO 8) - type IAB(s)m V in Cetus
Phoenix Dwarf - type Irr in Phoenix
Large Magellanic Cloud (LMC) - type Irr/SB(s)m in Dorado
Leo A (Leo III) - type IBm V in Leo
Sextans B (DDO 70) - type Ir+IV-V in Sextans
NGC 3109 - type Ir+IV-V in Hydra
Sextans A (DDO 75) - type Ir+V in Sextans
Dwarf elliptical galaxies
NGC 147 (DDO 3) - type dE5 pec in Cassiopeia
GR 8 (DDO 155) - type Im V
SagDIG (Sagittarius Dwarf Irregular Galaxy) - type IB(s)m V in Sagittarius
Barnard's Galaxy (NGC 6822) - type IB(s)m IV-V in Sagittarius
Aquarius Dwarf (DDO 210) - type Im V in Aquarius
IC 5152 - type IAB(s)m IV in Indus
Pegasus Dwarf or Pegasus Dwarf Irregular (DDO 216) - type Irr in Pegasus
Dwarf spheroidal galaxies
Cetus Dwarf - type dSph/E4 in Cetus
Andromeda III - type dE2 in Andromeda
NGC 185 - (type dE3 pec) - Cassiopeia
Andromeda I - type dE3 pec? in Andromeda
Sculptor Dwarf (E351-G30) - type dE3 in Sculptor
Andromeda V - type dSph in Andromeda
Andromeda II - type dE0 in Andromeda
Fornax Dwarf (E356-G04) - type dSph/E2 in Fornax
Carina Dwarf (E206-G220) - type dE3 in Carina
Antlia Dwarf - type dE3 in Antlia
Leo I (DDO 74) - type dE3 in Leo
Sextans Dwarf - type dE3 in Sextans
Leo II (Leo B) - type dE0 pec in Leo
Ursa Minor Dwarf - type dE4 in Ursa Minor
Draco Dwarf (DDO 208) - type dE0 pec in Draco
Sag DEG (Sagittarius Dwarf Elliptical Galaxy) - type dSph/E7 in Sagittarius
Tucana Dwarf - type dE5 in Tucana
Cassiopeia Dwarf (Andromeda VII) - type dSph in Cassiopeia
Pegasus Dwarf Spheroidal Galaxy (Andromeda VI) - type dSph in Pegasus
Indentification Unclear
Andromeda IV - Irregular Galaxy or Star Cloud (Irr?) in Andromeda
UGC-A 86 (0355+66) - Irregular, Elliptical or Lenticular Galaxy (Irr, dE or S0) in Camelopardalis
UGC-A 92 (EGB0427+63) - Irregular or Lenticular Galaxy (Irr or S0) in Camelopardalis
Probable non-members
NGC 404 - Elliptical or Lenticular Galaxy (E0 or SA(s)0-) in Andromeda
NGC 1569 - Irregular Galaxy (Irp+ III-IV) in Camelopardalis
NGC 1560 (IC 2062) - Spiral Galaxy (Sd) in Camelopardalis
Camelopardalis A - Irregular Galaxy (Irr) in Camelopardalis
Argo Dwarf - Irregular Galaxy (Irr) in Carina
2318-42 - Irregular Galaxy (Irr) in Grus
UKS 2323-326 - Irregular Galaxy (Irr) in Sculptor
UGC 9128 (DDO 187) - Irregular Galaxy (Irp+) in Boötes
Capricornus Dwarf is a Milky Way Globular Cluster formerly classified as a Dwarf Spheroidal Galaxy
Ursa Major Dwarf
Sextans C
See also
Groups and clusters of galaxies
List of nearest galaxies
External links
Category:Local Group
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