Friday, August 14, 2009

Satellite galaxy

The Milky Way Galaxy has a number of satellite galaxies, which are showed in the illustration and table below. (See individual entries for more details on these galaxies.)




Satellite galaxies of the Milky Way
galaxy distance
(light-years)
discovered absolute
magnitude
diameter
(light-years)
Canis Major Dwarf 25,000 2003 - -
Sagittarius Dwarf Elliptical 78,000 1994 -13.4 >10,000 ?
Large Magellanic Cloud 160,000 prehistoric -18.1 20,000
Small Magellanic Cloud 180,000 prehistoric -16.2 15,000
Ursa Major II 200,000 2006 - -
Ursa Minor Dwarf 220,000 1954 -8.9 1,000
Draco Dwarf 270,000 1954 -8.8 500
Sculptor Dwarf 285,000 1938 -11.1 1,000
Sextans Dwarf 290,000 1990 -9.5 3,000
Carina Dwarf 330,000 1977 -9.3 500
Fornax Dwarf 450,000 1938 -13.2 3,000
Leo I 670,000 1950 -9.6 500
Leo II 830,000 1950 -11.9 1,000

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