| NGC 3756 | |
|---|---|
 NGC 3756 imaged bySDSS | |
| Observation data (J2000epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 36m 48.0146s[1] |
| Declination | +54° 17′ 36.930″[1] |
| Redshift | 0.004300±0.00000500[1] |
| Heliocentric radial velocity | 1,289±1 km/s[1] |
| Distance | 63.45 ± 2.22 Mly (19.454 ± 0.682 Mpc)[1] |
| Group orcluster | NGC 3898 group (LGG 250) |
| Apparent magnitude (V) | 12.11[1] |
| Characteristics | |
| Type | SAB(rs)bc[1] |
| Size | ~92,300 ly (28.29 kpc) (estimated)[1] |
| Apparent size (V) | 4.2′ × 2.1′[1] |
| Other designations | |
| IRAS 11340+5434,2MASX J11364797+5417372,UGC 6579,MCG +09-19-134,PGC 35931,CGCG 268-063[1] | |
NGC 3756 is aintermediate spiral galaxy in theconstellation ofUrsa Major. Its velocity with respect to thecosmic microwave background is1,466±12 km/s, which corresponds to aHubble distance of 70.5 ± 5.0 Mly (21.62 ± 1.53 Mpc).[1] Additionally, 28non-redshift measurements give a similar mean distance of 63.45 ± 2.22 Mly (19.454 ± 0.682 Mpc).[2] It was discovered by German-British astronomerWilliam Herschel on 14 April 1789.[3]
NGC 3756 has a possibleactive 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 thisluminosity is not produced by the stars.[4][5]
NGC 3756 is a member of the NGC 3898 group (also known asLGG 250), which contains at least nine galaxies. The other members of thegroup areNGC 3733,NGC 3794,NGC 3846,NGC 3846A,NGC 3850,NGC 3898,NGC 3982, andUGC 6894.[6][7]
Onesupernova has been observed in NGC 3756:
Media related toNGC 3756 at Wikimedia Commons
