| IC 2531 | |
|---|---|
 The edge-on spiral galaxy IC 2531. | |
| Observation data (J2000 epoch) | |
| Constellation | Antlia |
| Right ascension | 09h 59m 55.50s |
| Declination | −29° 37′ 03.2″ |
| Redshift | 0.008246 |
| Heliocentric radial velocity | 2,472 km/s |
| Distance | 133 Mly (40.77 Mpc) |
| Apparent magnitude (V) | 0.27 |
| Apparent magnitude (B) | 0.35 |
| Surface brightness | 13.54 |
| Characteristics | |
| Type | Sb, HII |
| Size | ∼283,000 ly (estimated) |
| Apparent size (V) | 7.50' x 0.90' |
| 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.[1] It was discovered in February 1898, by the American astronomer Lewis Swift.[2] 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.[3]
IC 2531 contains a broad HI line. In addition, it has a luminosity class of III and regions of ionized hydrogen.[1]
- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-09-21.
- ^ "Index Catalog Objects: IC 2500 - 2549". cseligman.com. Retrieved 2024-09-21.
- ^ "Data from Revised NGC/IC catalogue". astrovalleyfield.ca. Retrieved 2024-09-21.