| NGC 2708 | |
|---|---|
 The spiral galaxy NGC 2708 | |
| Observation data (J2000epoch) | |
| Constellation | Hydra |
| Right ascension | 08h 56m 08.0688s[1] |
| Declination | −03° 21′ 36.467″[1] |
| Redshift | 0.006698[1] |
| Heliocentric radial velocity | 2008 ± 5 km/s[1] |
| Distance | 111.4 ± 7.9 Mly (34.15 ± 2.41 Mpc)[1] |
| Group orcluster | NGC 2708 Group (LGG 164) |
| Apparent magnitude (V) | 12.0[1] |
| Characteristics | |
| Type | SAB(s)b pec?[1] |
| Size | ~98,800 ly (30.29 kpc) (estimated)[1] |
| Apparent size (V) | 2.7′ × 1.4′[1] |
| Other designations | |
| IRAS 08535-0309,2MASX J08560804-0321363,NGC 2727,MCG +00-23-015,PGC 25097,CGCG 005-034[1] | |
NGC 2708 is aspiral galaxy in theconstellation ofHydra. Its velocity with respect to thecosmic microwave background is 2315 ± 22 km/s, which corresponds to aHubble distance of 34.15 ± 2.41Mpc (~111 millionlight-years).[1] It was discovered by German-British astronomerWilliam Herschel on 6 January 1785.[2] This galaxy was also observed by British astronomerJohn Herschel on 12 March 1826, and later listed as NGC 2727.[2]
TheSIMBAD database lists NGC 2708 as aSeyfert II galaxy,[3] i.e. a galaxy with a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.
Onesupernova has been observed in NGC 2708: SN 2023bee (type Ia, mag. 17.2621) was discovered by theDistance Less Than 40 Mpc Survey (DLT40) on 1 February 2023.[4]
According to A.M. Garcia, NGC 2708 is the namesake of the four member NGC 2708group (also known asLGG 164). The other three galaxies are:NGC 2695,NGC 2699, andNGC 2706.[5]
Media related toNGC 2708 at Wikimedia Commons
