NGC 5888
Galaxy in the constellation Boötes
From Wikipedia, the free encyclopedia
NGC 5888 is a barred spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 8,817±8 km/s, which corresponds to a Hubble distance of 424.1 ± 29.7 Mly (130.04 ± 9.10 Mpc).[1] It was discovered by German-British astronomer William Herschel on 9 April 1787.[2][3]
| NGC 5888 | |
|---|---|
NGC 5888 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 15h 13m 07.3590s[1] |
| Declination | +41° 15′ 52.900″[1] |
| Redshift | 0.029050±0.000011[1] |
| Heliocentric radial velocity | 8,709±3 km/s[1] |
| Distance | 424.1 ± 29.7 Mly (130.04 ± 9.10 Mpc)[1] |
| Apparent magnitude (V) | 13.8g[1] |
| Characteristics | |
| Type | SB(s)bc[1] |
| Size | ~234,900 ly (72.03 kpc) (estimated)[1] |
| Apparent size (V) | 1.36′ × 0.82′[1] |
| Other designations | |
| IRAS F15112+4127, UGC 9771, MCG +07-31-038, PGC 54316, CGCG 221-037[1] | |
NGC 5888 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[4] It also has an active galaxy nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[4]
NGC 5888, together with NGC 5886, form a gravitationally bound pair of galaxies.[5]
Supernovae
Three supernovae have been observed in NGC 5888:
- SN 2007Q (Type II, mag. 17.8) was discovered by Tim Puckett and Jack Newton on 3 January 2007.[6][7]
- SN 2010fv (Type II, mag. 20.1) was discovered by Lick Observatory Supernova Search (LOSS) on 1 July 2010.[8][9][10]
- SN 2018lev (Type II, mag. 18.77) was discovered by Gaia Photometric Science Alerts on 29 December 2018.[11]
