| NGC 4513 | |
|---|---|
 SDSS image of NGC 4513. | |
| Observation data (J2000epoch) | |
| Constellation | Draco |
| Right ascension | 12h 32m 01.5s[1] |
| Declination | 66° 19′ 57″[1] |
| Redshift | 0.007685[1] |
| Heliocentric radial velocity | 2304 km/s[1] |
| Distance | 110 Mly (33 Mpc)[1] |
| Group orcluster | NGC 4256 Group |
| Apparent magnitude (V) | 13.7[1] |
| Characteristics | |
| Type | (R)SA0^0[1] |
| Size | ~55,000 ly (17 kpc) (estimated)[1] |
| Apparent size (V) | 1.21 x 0.88[1] |
| Other designations | |
| CGCG 315-42, MCG 11-15-59, PGC 41527, UGC 7683[1] | |
NGC 4513 is alenticular galaxy[2][3][4] and aring galaxy[4][5][3] located about 110 millionlight-years away[2][3] in the constellationDraco. It was discovered by astronomerHeinrich d'Arrest on October 16, 1866.[6]
NGC 4513 has a large and very faint ring[7] that is quite separated from the main galactic disk.[8] The disk is gaseous and counter-rotates with respect to the inner disc. The outer part of the inner disc exhibits a population of counter-rotating stars that may be related to the outer ring.[8][3] The observed counter-rotation suggests that the ring resulted from the accretion of gas from the passage of another galaxy.[3] However, Ilyina et al. proposed that the ring is the result of a satellite galaxy vertically impacting onto the central part of NGC 4513 as the ring is bright inUV and is symmetric.[9]
NGC 4513 is a member of theNGC 4256 Group[10] which lies in the upper plane of theVirgo Supercluster.[11]
Media related toNGC 4513 at Wikimedia Commons