| NGC 4753 | |
|---|---|
.jpg) NGC 4753 imaged by theHST. Note the distinct dust lanes surrounding the nucleus. | |
| Observation data (J2000epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 52m 22.0682s[1] |
| Declination | −01° 11′ 58.597″[1] |
| Redshift | 0.003879[1] |
| Heliocentric radial velocity | 1163 ± 5 km/s[1] |
| Distance | 72.0 ± 5.2 Mly (22.08 ± 1.59 Mpc)[1] |
| Group orcluster | NGC 4753 Group |
| Apparent magnitude (V) | 10.85[1] |
| Characteristics | |
| Type | S0 pec[1] |
| Size | ~128,000 ly (39.24 kpc) (estimated)[1] |
| Apparent size (V) | 6.0 x 2.8[1] |
| Other designations | |
| IRAS 12498-0055,UGC 8009,MCG +00-33-016,PGC 43671,CGCG 015-029[1] | |
NGC 4753 is alenticular galaxy located about 60 millionlight-years away[2] in theconstellation ofVirgo.[3] NGC 4753 was discovered by astronomerWilliam Herschel on February 22, 1784.[4] It is notable for having distinct dust lanes that surround its nucleus.[5] It is a member of theNGC 4753 Group of galaxies, which is a member of theVirgo II Groups, a series of galaxies andgalaxy clusters strung out from the southern edge of theVirgo Supercluster.[6]
The distribution of dust in NGC 4753 lies in an inclined disk wrapped several times around the nucleus. The material in the disk may have been accreted from themerger of a gas richdwarf galaxy. Over several orbital periods, the accreted material eventually smeared out into a disk.Differential precession that occurred after theaccretion event caused the disk to twist. Eventually, the disk settled into a fixed orientation with respect to the galaxy. The age of the disk is estimated to be around half a billion to abillion years.[7]
Another explanation suggests that the dust in NGC 4753 originated fromred giant stars in the galaxy.[8]
Analysis of the twisted disk in NGC 4753 by Steiman-Cameron et al. revealed that most of the mass in the galaxy lies in a slightly flattened spherical halo ofdark matter.[7][9]
NGC 4753 has an estimated population of 1070 ± 120globular clusters.[10]
Twosupernovae have been observed in NGC 4753:
NGC 4753 is a member of its own galaxy group, known as theNGC 4753 Group.[16][6][5] TheNGC 4753 Group is located near the southern edge of theVirgo Cluster.[6] The group, along with other groups of galaxies form part of afilament that extends off from the southern border of theVirgo Cluster that is called theVirgo II Groups.[16][6]
.jpg)
