NGC 664
| NGC 664 | |
|---|---|
 Spiral galaxy NGC 664 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces |
| Right ascension | 01h 43m 45.7857s[1] |
| Declination | +04° 13′ 22.486″[1] |
| Redshift | 0.018113 [1] |
| Heliocentric radial velocity | 5430 ± 3 km/s[1] |
| Distance | 247.1 ± 17.3 Mly (75.77 ± 5.31 Mpc)[1] |
| Group or cluster | NGC 664 Group |
| Apparent magnitude (V) | 12.8[1] |
| Characteristics | |
| Type | Sb?[1] |
| Size | ~114,600 ly (35.14 kpc) (estimated)[1] |
| Apparent size (V) | 1.1' x 0.9'[1] |
| Other designations | |
| IRAS 01411+0358, 2MASX J01434582+0413222, UGC 1210, MCG +01-05-029, PGC 6359, CGCG 412-023[1] | |
NGC 664 is a spiral galaxy in the constellation of Pisces. Its velocity with respect to the cosmic microwave background is 5137 ± 21 km/s, which corresponds to a Hubble distance of 247.1 ± 17.3 Mly (75.77 ± 5.31 Mpc).[1] In addition, six non redshift measurements give a distance of 218.91 ± 3.66 Mly (67.117 ± 1.123 Mpc).[2] It was discovered by British astronomer John Herschel on 24 September 1830.[3]
Supernovae
[edit]Three supernovae have been observed in NGC 664:
- SN 1996bw (type II, mag. 17.5) was discovered by the BAO Supernova Survey on 30 November 1996.[4][5]
- SN 1997W (type II, mag. 18) was discovered by the Harvard–Smithsonian Center for Astrophysics on 1 February 1997.[6][7]
- SN 1999eb (type IIn, mag. 16.2) was discovered by the Lick Observatory Supernova Search (LOSS) on 2 October 1999.[8][9]
NGC 664 Group
[edit]NGC 664 is the namesake of the four member NGC 664 group. The other three galaxies are: IC 150, UGC 1204, and UGC 1240.[10]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for object NGC 664. Retrieved 22 August 2024.
- ^ "Distance Results for NGC 664". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 22 August 2024.
- ^ Seligman, Courtney. "NGC 664". Celestial Atlas. Retrieved 22 August 2024.
- ^ Li, W.; Qiao, Q.; Qiu, Y.; Hu, J.; Wei, J.; Xiu, D. (1996). "Supernova 1996bw in NGC 664". International Astronomical Union Circular (6512): 1. Bibcode:1996IAUC.6512....1L.
- ^ "SN 1996bw". Transient Name Server. IAU. Retrieved 22 August 2024.
- ^ Berlind, P.; Garnavich, P.; Hergenrother, C. (1997). "Supernovae 1997W and 1996bw in NGC 664". International Astronomical Union Circular (6551): 1. Bibcode:1997IAUC.6551....1B.
- ^ "SN 1997W". Transient Name Server. IAU. Retrieved 22 August 2024.
- ^ Modjaz, M.; Li, W. D.; Garnavich, P.; Jha, S.; Challis, P.; Kirshner, R.; Berlind, P. (1999). "Supernova 1999eb in NGC 664". International Astronomical Union Circular (7268): 1. Bibcode:1999IAUC.7268....1M.
- ^ "SN 1999eb". Transient Name Server. IAU. Retrieved 22 August 2024.
- ^ Zabludoff, Ann I.; Mulchaey, John S. (1998). "The Properties of Poor Groups of Galaxies. I. Spectroscopic Survey and Results". The Astrophysical Journal. 496 (1): 39–72. arXiv:astro-ph/9708132. Bibcode:1998ApJ...496...39Z. doi:10.1086/305355.
External links
[edit]Media related to NGC 664 at Wikimedia Commons
- NGC 664 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
