NGC 2532
Galaxy in the constellation Lynx
From Wikipedia, the free encyclopedia
NGC 2532 is a barred spiral galaxy in the constellation of Lynx. Its velocity with respect to the cosmic microwave background is 5,437±13 km/s, which corresponds to a Hubble distance of 261.6 ± 18.3 Mly (80.20 ± 5.62 Mpc).[1] However, seven non-redshift measurements give a much closer mean distance of 128.97 ± 6.85 Mly (39.543 ± 2.099 Mpc).[2] It was discovered by German-British astronomer William Herschel on 5 February 1788.[3][4]
| NGC 2532 | |
|---|---|
NGC 2532 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Lynx |
| Right ascension | 08h 10m 15.1840s[1] |
| Declination | +33° 57′ 23.757″[1] |
| Redshift | 0.017506±0.000002[1] |
| Heliocentric radial velocity | 5,248±1 km/s[1] |
| Distance | 128.97 ± 6.85 Mly (39.543 ± 2.099 Mpc)[1] |
| Apparent magnitude (V) | 13.5g[1] |
| Characteristics | |
| Type | SAB(rs)c[1] |
| Size | ~84,000 ly (25.75 kpc) (estimated)[1] |
| Apparent size (V) | 1.74′ × 1.47′[1] |
| Other designations | |
| IRAS 08070+3406, UGC 4256, MCG +06-18-013, PGC 22922, CGCG 178-032[1] | |
NGC 2532 has an active galactic 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.[5]
Supernovae
Three supernovae have been observed in NGC 2532:
- SN 1999gb (Type IIn, mag. 16.1) was discovered by the Lick Observatory Supernova Search (LOSS) on 22 November 1999.[6][7]
- SN 2002hn (Type Ic, mag. 16.8) was discovered by LOTOSS (Lick Observatory and Tenagra Observatory Supernova Searches) on 5 November 2002.[8][9]
- SN 2016gil (Type II, mag. 18) was discovered by the Gaia Photometric Science Alerts programme on 17 September 2016.[10]
