NGC 2325
| NGC 2325 | |
|---|---|
| File:NGC 2325 PanS.jpg 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 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 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
[edit | edit source]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]
Supernova
[edit | edit source]One supernova has been observed in NGC 2325:
- SN 2010ih (Type Ia, mag. 13.3) was discovered by The CHilean Automatic Supernova sEarch (CHASE) on 29 September 2010.[9][10] A prediscovery image taken on 16 September showed it at magnitude 12.8, making it the brightest supernova of 2010.[9][11]
See also
[edit | edit source]References
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External links
[edit | edit source]- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
- NGC 2325 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
