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| NGC 5308 | |
|---|---|
 NGC 5308 imaged by the Hubble Space Telescope, along with LEDA 2802348 (right) | |
| Observation data (J2000 epoch) | |
| 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 or cluster | 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-on lenticular galaxy in the constellation of Ursa Major. It was discovered on 19 March 1790 by William Herschel.[5] It was described by John Louis Emil Dreyer as "bright, pretty large" when he compiled the New General Catalogue.[6] A small, irregular galaxy near NGC 5308 has been given the designation LEDA 2802348.[7]
NGC 5308 was imaged by the Hubble Space Telescope in 2016. The galaxy appears to be a flat, smooth disk, typical of most lenticular galaxies. Many large globular clusters orbit the galaxy; these are visible as tiny dots surrounding the galaxy, and are mostly made of old, aging stars similar to the galaxy itself.[8]
- ^ a b Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
- ^ a b c d e f "NED results for object NGC 5308". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 21 February 2017.
- ^ "NGC 5322". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 February 2017.
- ^ a b "NGC 5308". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 February 2017.
- ^ Seligman, Courtney. "New General Catalogue objects: NGC 5300 – 5349". cseligman.com. Retrieved 21 February 2017.
- ^ "NGC 5308 – SEDS". seds.org. Retrieved 21 February 2017.
- ^ "LEDA 2802348". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 February 2017.
- ^ "Busy bees | ESA/Hubble". spacetelescope.org. 2016. Retrieved 21 February 2017.