NGC 3277
Galaxy in the constellation Leo Minor
From Wikipedia, the free encyclopedia
NGC 3277 is a spiral galaxy in the constellation of Leo Minor. Its velocity with respect to the cosmic microwave background is 1,712±21 km/s, which corresponds to a Hubble distance of 82.4 ± 5.9 Mly (25.26 ± 1.80 Mpc).[2] However, five non-redshift measurements give a much farther mean distance of 148.34 ± 17.58 Mly (45.480 ± 5.389 Mpc).[3] It was discovered by German-British astronomer William Herschel on 11 April 1785.[4][1]
| NGC 3277 | |
|---|---|
NGC 3277 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Leo Minor[1] |
| Right ascension | 10h 32m 55.4506s[2] |
| Declination | +28° 30′ 42.409″[2] |
| Redshift | 0.004720±0.00000900[2] |
| Heliocentric radial velocity | 1,415±3 km/s[2] |
| Distance | 148.34 ± 17.58 Mly (45.480 ± 5.389 Mpc)[2] |
| Group or cluster | NGC 3254 group (LGG 197) |
| Apparent magnitude (V) | 12.50[2] |
| Characteristics | |
| Type | SA(r)ab[2] |
| Size | ~103,600 ly (31.75 kpc) (estimated)[2] |
| Apparent size (V) | 1.9′ × 1.7′[2] |
| Other designations | |
| IRAS 10301+2846, 2MASX J10325545+2830422, UGC 5731, MCG +05-25-022, PGC 31166, CGCG 154-026[2] | |
NGC 3277 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[5]
NGC 3254 group
Supernova
One Supernova has been observed in NGC 3277:
- SN 2025coe (Type Ib-Ca-rich, mag. 17.4) was discovered by Kōichi Itagaki on 24 February 2025.[8] Its light curves displayed multiple distinct peaks which is very rare among known calcium-rich supernovae, with only SN 2019ehk showing similar features.[9] It had an exceptionally large projected physical offset of ~39.3 kpc (~317.7″) from the galactic center, making it the most distant multi-peaked calcium-rich supernova ever discovered relative to its host galaxy.[9] The progenitor system might have been ejected through dynamical interactions.[9]
