| NGC 337 | |
|---|---|
NGC 337 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 00h 59m 50.0064s |
| Declination | −07° 34′ 40.94″ |
| Redshift | 0.005504 |
| Heliocentric radial velocity | 1650 ± 1 km/s |
| Distance | 64.0 ± 4.6 Mly (19.63 ± 1.41 Mpc) |
| Group or cluster | NGC 337 Group (LGG 15) |
| Apparent magnitude (V) | 12.46 |
| Characteristics | |
| Type | SB(s)d |
| Size | ~60,400 ly (18.52 kpc) (estimated) |
| Apparent size (V) | 2.9' × 1.8' |
| Other designations | |
| IRAS 00573-0750, 2MASX J00595009-0734406, MCG -01-03-053, PGC 3572 | |
NGC 337 is a barred spiral galaxy in the constellation Cetus. Its velocity with respect to the cosmic microwave background is 1,331±22 km/s, which corresponds to a Hubble distance of 64.0 ± 4.6 Mly (19.63 ± 1.41 Mpc). Additionally, 20 non-redshift measurements give a similar distance of 63.11 ± 1.81 Mly (19.350 ± 0.556 Mpc).
It was discovered on September 10, 1785 by German-British astronomer William Herschel. It was described by John Dreyer as "pretty faint, large, extended, gradually a little brighter middle, 10th magnitude star 21 seconds of time to the east."
NGC 337 is considered as a Late-Type Morphology galaxy, with a Star Formation Rate (SFR) of 1.62 M⊙ yr⁻¹ and has a Star Formation Efficiency (sSFR) of -9.62.
Two supernovae have been observed in NGC 337:
NGC 337 is the largest and brightest galaxy in the NGC 337 Group (also known as LGG 15). The group includes at least three other galaxies: NGC 274, NGC 275, and NGC 298.