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NGC 4636
Galaxy in the constellation Virgo / From Wikipedia, the free encyclopedia
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NGC 4636 is an elliptical galaxy located in the constellation Virgo. It is a member of the NGC 4753 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[3] It is located at a distance of about 55 million light years from Earth, which, given its apparent dimensions, means that NGC 4636 is about 105,000 light years across.
NGC 4636 | |
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![]() SDSS image of the elliptical galaxy NGC 4636. | |
Observation data (J2000 epoch) | |
Constellation | Virgo |
Right ascension | 12h 42m 49.8s[1] |
Declination | +02° 41′ 16″[1] |
Redshift | 0.003129 ± 0.000014 [1] |
Heliocentric radial velocity | 938 ± 4 km/s[1] |
Distance | 53 ± 11 Mly (16.3 ± 3.4 Mpc)[1] |
Apparent magnitude (V) | 9.4 [2] |
Characteristics | |
Type | E/S0_1 [1] |
Apparent size (V) | 6.0′ × 4.7′ |
Notable features | Strong X-ray source |
Other designations | |
UGC 7878, VCC 1939, CGCG 043–002, MCG +01-32-137, PGC 42734[1] |
It was discovered by William Herschel on February 23, 1784.[4] NGC 4636 lies one and a half degrees southwest of Delta Virginis. It can be viewed through a telescope at a ×23 magnification as a bright oval glow. It is part of the Herschel 400 Catalogue.[5]