satellite galaxy Comparison Table

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satellite galaxy comparison table

Subject has classification criteria has distance from galaxy center is part of is a kind of is an instance of has discovery date has mass has definition has distance has discoverer orbit

Andromeda I Local Group satellite galaxy 1972 Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group. van den Bergh Andromeda galaxy

Andromeda II Local Group satellite galaxy 1972 Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group. van den Bergh Andromeda galaxy

Andromeda III Local Group satellite galaxy 1972 Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group. van den Bergh Andromeda galaxy

Carina galaxy 350000 light-years Local Group satellite galaxy 1977 A dwarf galaxy that orbits the Milky Way. Milky Way

dwarf elliptical satellite galaxy satellite galaxy

Fornax galaxy 440000 light-years Local Group satellite galaxy 1938 2 × 10⁷ M_sun A dwarf spheroidal galaxy, in the Local Group, that orbits the Milky Way. (M_v ≈ -12). 190 kpc Milky Way

Leo dwarf E0 (spherical) to E7 (greatest eccentricity) dwarf elliptical galaxy > 10⁷ M_sun (among the least massive galaxies) Two dwarf elliptical galaxies (about 220-250 kpc distant) belonging to the Local Group. Leo I (dE3), M_v ≈ - 11, diameter 1.8 kpc; Leo II, M_v = -9.5, diameter 1.3 kpc.

Magellanic Cloud naked eye object Two small irregular (or possibly barred spiral) galaxies (satellites of the Milky Way galaxy) about 50-60 kpc (LMC, in Dorado) and 60-70 kpc (SMC, in Toucana) distant, visible to the naked eye from the southern hemisphere. Both clouds contain mainly Population I stars. The LMC contains numerous ob stars and at least 10 stars that are an order of magnitude brighter (m_v = - 9) than any supergiants known in our galaxy. It also contains several times our galaxy's concentration of interstellar matter.

Sextans Dwarf 300 kpc Local Group satellite galaxy 1990 A dwarf companion to the Milky Way. Discovered by computer. Milky Way

Subject	has classification criteria	has distance from galaxy center	is part of	is a kind of	is an instance of	has discovery date	has mass	has definition	has distance	has discoverer	orbit
Andromeda I			Local Group		satellite galaxy	1972		Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group.		van den Bergh	Andromeda galaxy
Andromeda II			Local Group		satellite galaxy	1972		Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group.		van den Bergh	Andromeda galaxy
Andromeda III			Local Group		satellite galaxy	1972		Dwarf spheroidal galaxy in the Andromeda subgroup of the Local Group. It is among the intrinsically faintest members of the Local Group.		van den Bergh	Andromeda galaxy
Carina galaxy		350000 light-years	Local Group		satellite galaxy	1977		A dwarf galaxy that orbits the Milky Way.			Milky Way
dwarf elliptical satellite galaxy				satellite galaxy
Fornax galaxy		440000 light-years	Local Group		satellite galaxy	1938	2 × 10⁷ M_sun	A dwarf spheroidal galaxy, in the Local Group, that orbits the Milky Way. (M_v ≈ -12).	190 kpc		Milky Way
Leo dwarf	E0 (spherical) to E7 (greatest eccentricity)			dwarf elliptical galaxy			> 10⁷ M_sun (among the least massive galaxies)	Two dwarf elliptical galaxies (about 220-250 kpc distant) belonging to the Local Group. Leo I (dE3), M_v ≈ - 11, diameter 1.8 kpc; Leo II, M_v = -9.5, diameter 1.3 kpc.
Magellanic Cloud				naked eye object				Two small irregular (or possibly barred spiral) galaxies (satellites of the Milky Way galaxy) about 50-60 kpc (LMC, in Dorado) and 60-70 kpc (SMC, in Toucana) distant, visible to the naked eye from the southern hemisphere. Both clouds contain mainly Population I stars. The LMC contains numerous ob stars and at least 10 stars that are an order of magnitude brighter (m_v = - 9) than any supergiants known in our galaxy. It also contains several times our galaxy's concentration of interstellar matter.
Sextans Dwarf		300 kpc	Local Group		satellite galaxy	1990		A dwarf companion to the Milky Way. Discovered by computer.			Milky Way

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