| NGC 5641 | |
|---|---|
 SDSS image of NGC 5641 | |
| Observation data (J2000epoch) | |
| Constellation | Boötes |
| Right ascension | 14h 29m 16.6s[1] |
| Declination | +28° 49′ 18.7″[1] |
| Redshift | 0.01440[1] |
| Heliocentric radial velocity | 4286 km/s[1] |
| Galactocentric velocity | 4384 km/s[2] |
| Distance | 196 ± 14 Mly (60.1 ± 4.2 Mpc)[2] |
| Apparent magnitude (V) | 13.0[2] |
| Absolute magnitude (V) | -20.9[nb 1] |
| Characteristics | |
| Type | (R')SAB(r)ab[2] |
| Apparent size (V) | 2.4' x 1.1'[2] |
| Other designations | |
| UGC 9300,MCG +05-34-055,PGC 51758[1][3] | |
NGC 5641 is a type Sb-barredspiral galaxy[4] in the constellation ofBoötes, registered inNew General Catalogue (NGC).[1] It is located five degrees east ofNGC 5466.[4]
NGC 5641 was discovered byÉdouard Stephan on 4 June 1880.John Louis Emil Dreyer inside the New General Catalogue, described the galaxy as "pretty bright, pretty small, a little extended, much brighter middle, mottled but not resolved?"[3] It was described inBurnham's Celestial Handbook as "pretty bright, pretty small, slightly elongated and much brighter in the middle".[5]Walter Scott Houston also noted that this galaxy was missed byWilliam Herschel. He wrote "although NGC 5641 is only 2' long, this should not have been a problem for Herschel observing at 157x."[5]
According to A. M. Garcia, NGC 5641 is part of the NGC 5653group (also known asLGG 383). This group of galaxies has at least 15 members, includingNGC 5629,NGC 5635,NGC 5639,NGC 5642,NGC 5653,NGC 5659,NGC 5657,NGC 5672,NGC 5703,NGC 5735,IC 4397, UGC 9253, UGC 9268, and UGC 9302.[6][7]
