NGC 5641
| NGC 5641 | |
|---|---|
 SDSS image of NGC 5641 | |
| Observation data (J2000 epoch) | |
| 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-barred spiral galaxy[4] in the constellation of Boötes, registered in New General Catalogue (NGC).[1] It is located five degrees east of NGC 5466.[4]
Observation history
[edit]NGC 5641 was discovered by Édouard 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 in Burnham'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 by William Herschel. He wrote "although NGC 5641 is only 2' long, this should not have been a problem for Herschel observing at 157x."[5]
Notes
[edit]References
[edit]- ^ a b c d e f "NGC 5641". SIMBAD. Archived from the original on 28 September 2022. Retrieved 28 September 2022.
- ^ a b c d e f "Results for object NGC 5641". NASA/IPAC Extragalactic Database. Archived from the original on 9 October 2022. Retrieved 15 August 2022.
- ^ a b Seligman, Courtney. "NGC 5641 (= PGC 51758)". Seligman website. Retrieved 2 October 2022.
- ^ a b Gilmour, Jess K. (2003). "Bootes". The Practical Astronomer's Deep-sky Companion. London: Springer London. p. 17. doi:10.1007/978-1-4471-0071-3_6. ISBN 978-1-85233-474-1.
- ^ a b "NGC 5641". Deep Sky Observer's Companion – the online database. Archived from the original on 25 March 2016. Retrieved 2 October 2022.
