| NGC 5308 | |
|---|---|
 NGC 5308 imaged by theHubble Space Telescope, along with LEDA 2802348 (right) | |
| Observation data (J2000epoch) | |
| Constellation | Ursa Major |
| Right ascension | 13h 47m 00.392s[1] |
| Declination | +60° 58′ 22.94″[1] |
| Redshift | 0.006665[2] |
| Heliocentric radial velocity | 1998 km/s[2] |
| Distance | 95.48 ± 16.78 Mly (29.275 ± 5.144 Mpc)[2] |
| Group orcluster | NGC 5322 group (LGG 360)[3] |
| Apparent magnitude (B) | 12.5[4] |
| Characteristics | |
| Type | S0−[2] |
| Size | 103,200 ly (31,640 pc)[2] |
| Apparent size (V) | 3.7′ × 0.7′[2] |
| Other designations | |
| UGC 8722,PGC 48860,CGCG 295-012[4] | |
NGC 5308 is an edge-onlenticular galaxy in theconstellation ofUrsa Major. It was discovered on 19 March 1790 byWilliam Herschel.[5] It was described byJohn Louis Emil Dreyer as "bright, pretty large" when he compiled theNew General Catalogue.[6] A small, irregular galaxy near NGC 5308 has been given the designation LEDA 2802348.[7]
NGC 5308 was imaged by theHubble Space Telescope in 2016. The galaxy appears to be a flat, smooth disk, typical of most lenticular galaxies. Many largeglobular clusters orbit the galaxy; these are visible as tiny dots surrounding the galaxy, and are mostly made of old, agingstars similar to the galaxy itself.[8]
According to A.M. Garcia, the galaxy NGC 5308 is a member of theNGC 5322 group (also known asLGG 360), which contains at least 10 other galaxies, inclulding NGC 5322,NGC 5342,NGC 5372,NGC 5376,NGC 5379,NGC 5389, UGC 8684, UGC 8714, and UGC 8716.[9]
Onesupernova has been observed in NGC 5308:SN 1996bk (type Ia, mag. 14.5) was discovered by Piero Mazza and Stefano Pesci on 12 October 1996, located 10.5" south and 17.9" west of center of the galaxy.[10][11]
Media related toNGC 5308 at Wikimedia Commons.jpg) | Thislenticular galaxy article is astub. You can help Wikipedia byexpanding it. |
