| NGC 2708 | |
|---|---|
 NGC 2708 imaged byPan-STARRS | |
| 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.
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.[4]
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.[5]
Media related toNGC 2708 at Wikimedia Commons
