IC 21
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| IC 21 | |
|---|---|
 | |
| Observation data | |
| Constellation | Cetus |
| Redshift | 0.060818 |
| Heliocentric radial velocity | 18233 km/s |
| Distance | 822 Mly |
| Characteristics | |
| Type | SBbc |
| Size | 120,000 ly (estimated) |
| Other designations | |
| PGC 1785, MCG+00-02-053, LEDA 1785, 2MASX J00291043-0009490 | |
IC 21 known as PGC 1785, is a distant barred spiral galaxy located in the Cetus constellation.[1] It is located 822 million light-years away and has an estimated diameter of 120,000 thousand light-years.[2] IC 21 was first found by Stephane Javelle, who was a French astronomer on November 7th in 1891.[3] The galaxy is apparently located near towards a dwarf galaxy, PGC 3112047.[3] According to SIMBAD database, IC 21 is both a Seyfert type 2 and radio galaxy, suggesting an active galactic nucleus.[4]
References[edit]
- ^ "IC 21 - Barred Spiral Galaxy in Cetus | TheSkyLive.com". theskylive.com. Retrieved 2024-04-17.
- ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-17.
- ^ a b "Index Catalog Objects: IC 1 - 49". cseligman.com. Retrieved 2024-04-17.
- ^ "IC 21". simbad.u-strasbg.fr. Retrieved 2024-04-17.
