NGC 2325
Galaxy in the constellation Canis Major
From Wikipedia, the free encyclopedia
NGC 2325 is a elliptical galaxy in the constellation of Canis Major. Its velocity with respect to the cosmic microwave background is 2,356±25 km/s, which corresponds to a Hubble distance of 113.4 ± 8.1 Mly (34.76 ± 2.48 Mpc).[1] However, 16 non-redshift measurements give a much closer mean distance of 74.53 ± 3.94 Mly (22.850 ± 1.209 Mpc).[2] It was discovered by British astronomer John Herschel on 1 February 1837.[3]
| NGC 2325 | |
|---|---|
NGC 2325 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Canis Major |
| Right ascension | 07h 02m 40.4030s[1] |
| Declination | −28° 41′ 50.048″[1] |
| Redshift | 0.007288±0.0000730[1] |
| Heliocentric radial velocity | 2,185±22 km/s[1] |
| Distance | 74.53 ± 3.94 Mly (22.850 ± 1.209 Mpc)[1] |
| Group or cluster | [CHM2007] HDC 421 |
| Apparent magnitude (V) | 12.38[1] |
| Characteristics | |
| Type | E4[1] |
| Size | ~157,700 ly (48.36 kpc) (estimated)[1] |
| Apparent size (V) | 3.3′ × 1.9′[1] |
| Other designations | |
| ESO 427- G 028, 2MASX J07024038-2841501, MCG -05-17-005, PGC 20047[1] | |
NGC 2325 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.[4][5] It also 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.[6][5]
Galaxy group
NGC 2325 is a member of a galaxy group known as [CHM2007] HDC 421. The group contains at least eight galaxies, including IC 456, ESO 427-22, MCG-05-17-006, MCG-05-17-004, MCG-05-17-008, and two others.[7][8]
