NGC 664
| NGC 664 | |
|---|---|
 Spiral galaxy NGC 664 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces |
| Right ascension | 01h 43m 45.81s[1] |
| Declination | +04° 13′ 22.4″[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),[4] SN 1997W (type II, mag. 18),[5] and SN 1999eb (type IIn, mag. 16.2).[6]
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.[7]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for 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.
- ^ "SN 1996bw". Transient Name Server. IAU. Retrieved 22 August 2024.
- ^ "SN 1997W". Transient Name Server. IAU. Retrieved 22 August 2024.
- ^ "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
