| NGC 7337 | |
|---|---|
| 👁 Image NGC 7337 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 22h 37m 26.6991s[1] |
| Declination | +34° 22′ 26.423″[1] |
| Redshift | 0.021952±0.0000500[1] |
| Heliocentric radial velocity | 6,581±15 km/s[1] |
| Distance | 300.9 ± 21.1 Mly (92.26 ± 6.47 Mpc)[1] |
| Apparent magnitude (V) | 15.24[1] |
| Characteristics | |
| Type | SB(rs)b[1] |
| Size | ~182,700 ly (56.03 kpc) (estimated)[1] |
| Apparent size (V) | 1.1′ × 0.9′[1] |
| Other designations | |
| HOLM 795B, 2MASX J22372663+3422275, UGC 12120, MCG +06-49-050, PGC 69344, CGCG 514-071[1] | |
NGC 7337 is an barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 6,255±27 km/s, which corresponds to a Hubble distance of 300.9 ± 21.1 Mly (92.26 ± 6.47 Mpc).[1] It was discovered by Irish physicist George Stoney and William Parsons, 3rd Earl of Rosse, on 10 September 1849.[2]
NGC 7337 has a possible 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.[3][4]
Galaxy Groups
[edit]
NGC 7337 is a member of a visual grouping known as the NGC 7331 Group of galaxies (also known as the Deer Lick Group). The members of the group, NGC 7335 [fr], NGC 7336 [fr], NGC 7337, and NGC 7340 [fr], lie far in the background at distances of approximately 300–350 million light years, compared to the group's main galaxy NGC 7331, which is much closer at a distance of approximately 44 million light years.[5]
All of the members of the NGC 7331 Group, along with NGC 7325, NGC 7326, NGC 7327, NGC 7333, NGC 7338, are listed together as Holm 795 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[6]
Supernova
[edit]One supernova has been observed in NGC 7337:
- SN 1973O (type unknown, mag. 19) was discovered by Kormendy on 4 September 1973.[7]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "Results for object NGC 7337". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 15 December 2025.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 7337". Celestial Atlas. Retrieved 15 December 2025.
- ^ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D.; Davies, R. I.; Hönig, S. F.; Ricci, C.; Rosario, D. J.; Salvato, M.; Shankar, F.; Stern, D. (2020). "Local AGN survey (LASr): I. Galaxy sample, infrared colour selection, and predictions for AGN within 100 MPC". Monthly Notices of the Royal Astronomical Society. 494 (2): 1784. arXiv:2003.05959. Bibcode:2020MNRAS.494.1784A. doi:10.1093/mnras/staa766.
- ^ "NGC 7337". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 December 2025.
- ^ "Spiral Galaxy NGC 7331, Galaxy Group (NGC 7335, 7336, 7337)".
- ^ Holmberg, Erik (1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems". Annals of the Observatory of Lund. 6: 1. Bibcode:1937AnLun...6....1H.
- ^ "SN 1973O". Transient Name Server. IAU. Retrieved 15 December 2025.
External links
[edit]- 👁 Wikimedia Commons logo
Media related to NGC 7337 at Wikimedia Commons - NGC 7337 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
