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Satellite galaxies that orbit from 1,000 ly (310 pc) of the edge of the disc of the Milky Way Galaxy to the edge of the dark matter halo of the Milky Way at 980,000 ly (300 kpc) from the center of the galaxy, [a] are generally depleted in hydrogen gas compared to those that orbit more distantly. This is because of their interactions with the ...
It possesses a diffuse core which is the largest core of any galaxy known to date, [5] and contains a supermassive black hole, one of the largest discovered. [5] IC 1101 is located at 354.0 megaparsecs (1.15 billion light-years) from Earth.
A satellite galaxy is a smaller companion galaxy that travels on bound orbits within the gravitational potential of a more massive and luminous host galaxy (also known as the primary galaxy). [1] Satellite galaxies and their constituents are bound to their host galaxy, in the same way that planets within the Solar System are gravitationally ...
Supergiant elliptical galaxies are some of the largest galaxies known. The Condor Galaxy is a colossal spiral galaxy disturbed by the smaller IC 4970 . It is the largest known spiral galaxy with the isophotal diameter of over 717,000 light-years (220 kiloparsecs ).
A Milky Way satellite dwarf galaxy. [citation needed] Largest known galaxy ESO 383-76: Centaurus: 540.89 kiloparsecs (1,764,000 light-years) 90% total B-light: Central galaxy of Abell 3571 [citation needed] Largest spiral galaxy NGC 6872: Pavo: 220 kiloparsecs (718,000 light-years) D 25.5 isophote: Interacting galaxy, stripped by IC 4970 ...
Second largest galaxy in the group, which may or may not be the most massive galaxy of the group. [13] Diameter (D 25 isophote): 87,400 light-years Mass: (1.54 ± 0.1) × 10 12 M ☉ Number of stars: (2.5 ± 1.5) × 10 11. Triangulum Galaxy (M33, NGC 598) SAcd Triangulum: Third largest, only unbarred spiral galaxy and possible satellite of the ...
Proton satellite: 17,000 kg (37,479 lb) Space research satellite: LEO: Deorbited 1969: 1965–1969 Compton Gamma Ray Observatory: 16,329 kg (35,999 lb) Space observatory [9] LEO: Deorbited 2000: 1991–2000 Lacrosse: 14,500 kg (31,967 lb)-16,000 kg (35,274 lb) Radar imaging reconnaissance satellite [10] SSO: Retired Lacrosse 5 still in orbit ...
There are some dwarf galaxies that have already been absorbed by the Milky Way, such as the progenitor of Omega Centauri. [281] In 2005 [282] with further confirmation in 2012 [283] researchers reported that most satellite galaxies of the Milky Way lie in a very large disk and orbit in the same direction. This came as a surprise: according to ...