| NGC 665 | |
|---|---|
 ASDSS image of NGC 665 | |
| Observation data (J2000epoch) | |
| Constellation | Pisces |
| Right ascension | 01h 44m 56.10s[1] |
| Declination | +10° 25′ 23″[1] |
| Redshift | 0.018079±0.000103[1] |
| Distance | 236Mly (72.3 Mpc)[2] |
| Apparent magnitude (V) | 12.2[2] |
| Characteristics | |
| Type | (R)S0^0[2] |
| Size | 100,000 ly |
| Apparent size (V) | 1.8 x 1.0[1] |
| Notable features | Small halo of gas visible at galactic center |
| Other designations | |
| UGC 1223,MCG +02-05-019,PGC 6415[2] | |
NGC 665 is alenticular galaxy 236 millionlight-years away in theconstellation Pisces.[2] NGC 665 was discovered in 1786 byWilliam Herschel, and is 100,000 light-years across.[2] In the center of NGC 665, a small halo of dust and gas can be seen, indicating some smallstar-forming regions.[2] NGC 665 is not known to have anactive galactic nuclei, as seen in the SDSS image.[1]
Like other galaxies, NGC 665 has asatellite galaxy (MCG 02-05-022),[3] adwarf elliptical galaxy, as seen in the SDSS image of NGC 665.[2] Its nearby cluster of stars isNGC 663.
According to A.M. Garcia, NGC 665 is a member of the NGC 673Group (also known asLGG 31). This group contains at least 17 galaxies, includingIC 156,IC 162,NGC 673,NGC 677,NGC 683, and 11 galaxies from theUGC catalogue.[4]
Media related toNGC 665 at Wikimedia Commons
