IC 2531
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Right ascension09h 59m 55.50s [1]
Declination−29° 37′ 03.2″ [1]
| IC 2531 | |
|---|---|
 The edge-on spiral galaxy IC 2531. | |
| Observation data (J2000 epoch) | |
| Constellation | Antlia[1] |
| Right ascension | 09h 59m 55.50s [1] |
| Declination | −29° 37′ 03.2″ [1] |
| Redshift | 0.008246 [1] |
| Heliocentric radial velocity | 2,472 km/s[1] |
| Distance | 134.5 Mly (41.28 Mpc)[1] |
| Apparent magnitude (V) | 0.27[1] |
| Apparent magnitude (B) | 0.35[1] |
| Surface brightness | 13.5[1] |
| Characteristics | |
| Type | Sc? edge-on, HII[1] |
| Size | ~283,000 ly (86.65 kpc) (estimated)[1] |
| Apparent size (V) | 7.50' × 0.90'[1] |
| Other designations | |
| PGC 28909, ESO 435-G025, MCG -05-24-015, AM 0957-292, "little N 891" | |
IC 2531 is an edge-on spiral galaxy located in the constellation of Antlia. It is located 130 million light years from Earth.[2] It was discovered by American astronomer Lewis Swift on 15 February 1898.[3][4] The galaxy has been called by its nickname "little N 891" because of its resemblance to another edge-on spiral, NGC 891. However IC 2531 is twice as large.[5]
IC 2531 contains a broad HI line. In addition, it has a luminosity class of III and regions of ionized hydrogen.[2]
