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NGC 4991 | |
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Observation data (J2000 epoch) | |
Constellation | Virgo |
Right ascension | 13h 09m 15.11s |
Declination | +02d 20m 51.56s |
Redshift | 0.056826 |
Heliocentric radial velocity | 16,554 km/s |
Distance | 836 Mly |
Apparent magnitude (V) | 14.7 |
Apparent magnitude (B) | 15.5 |
Characteristics | |
Type | Sb |
Size | 164,000 ly |
Apparent size (V) | 0.6' x 0.4' |
Other designations | |
PGC 45604, 2MASX J13091510+02200513, IRAS F13066+0237, NVSS J130914+022050, Z 44-13, SDSS J130915.11+022051.5 |
NGC 4991 is a spiral galaxy in the constellation of Virgo.[1][2] It is located 835 million light-years from the Solar System. NGC 4991 was first discovered on April 30, 1864 by German astronomer, Albert Marth.[3] It is considered as a radio galaxy by the SIMBAD database.[4] It has an active galactic nucleus and contains high amounts of ionized hydrogen.[2]