| NGC 7312 | |
|---|---|
 The barred spiral galaxy NGC 7312 | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 22 34 34.7889 |
| Declination | +05° 49′ 02.579″ |
| Redshift | 0.027609 |
| Heliocentric radial velocity | 8277 ± 1 km/s |
| Distance | 380.6 ± 26.7 Mly (116.68 ± 8.18 Mpc) |
| Apparent magnitude (V) | 13.4 |
| Characteristics | |
| Type | SB(s)b |
| Size | ~225,000 ly (68.97 kpc) (estimated) |
| Apparent size (V) | 1.5′ × 0.8′ |
| Other designations | |
| 2MASX J22343478+0549025, UGC 12083, MCG +01-57-010, PGC 69198, CGCG 404-023 | |
NGC 7312 is a barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 7911 ± 26 km/s, which corresponds to a Hubble distance of 116.68 ± 8.18 Mpc (∼381 million light-years). It was discovered by German astronomer Albert Marth on 30 October 1863.
According to Steven D. Peterson, NGC 7312 forms a galaxy pair with NGC 7311. The Hubble distance to NGC 7311 is 61.33 ± 4.31 Mpc (∼200 million light-years), which is much closer than NGC 7312, and therefore the pairing is purely optical.
Supernovae
Two supernovae have been observed in NGC 7312:
- PSNJ22343424+0548478 (type II, mag 16.6) was discovered by E. Weinberg, R. Post, Jack Newton, and Tim Puckett on 17 September 2015.
- SN 2024ixe (type IIb, mag. 19.7) was discovered by the Catalina Real-time Transient Survey (SNHunt) on 15 may 2024.
See also
References
- ^ "Results for object NGC 7312". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 2 August 2024.
- Seligman, Courtney. "New General Catalogue Objects: NGC 7312". Celestial Atlas. Retrieved 14 December 2024.
- Peterson, S. D. (1979). "Double galaxies. I. Observational data on a well-defined sample". The Astrophysical Journal Supplement Series. 40: 527. Bibcode:1979ApJS...40..527P. doi:10.1086/190597.
- Bishop, David. "Bright Supernovae - 2015 (Entry for PSNJ22343424+0548478)". Rochester Astronomy. Retrieved 15 December 2024.
- "SN 2024ixe". Transient Name Server. IAU. Retrieved 15 December 2024.
External links
Media related to NGC 7312 at Wikimedia Commons- NGC 7312 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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