NGC 7343
Galaxy in the constellation Pegasus
From Wikipedia, the free encyclopedia
NGC 7343 is a barred spiral galaxy located in the constellation Pegasus. Its velocity relative to the cosmic microwave background is 7150 ± 24 km/s, which corresponds to a Hubble distance of 105.5 ± 7.4 Mpc (~344 million ly). NGC 7343 was discovered by American astronomer Truman Safford in 1866. It was independently rediscovered by French astronomer Édouard Stephan on September 27, 1873.
| NGC 7343 | |
|---|---|
NGC 7343 imaged by the Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 22h 38m 37.8618s[1] |
| Declination | +34° 04′ 17.307″[1] |
| Apparent magnitude (V) | 13.5 |
| Apparent magnitude (B) | 14.4 |
| Surface brightness | 13.26 mag/arcsec2 |
| Characteristics | |
| Size | ~90,500 ly (27.75 kpc) (estimated)[1] |
| Other designations | |
| IRAS 22363+3348, UGC 12129, MCG +06-49-059, PGC 69391, CGCG 514-082[1] | |
The luminosity class of NGC 7343 is II-III and it has a broad HI line. In addition, it is also a LINER galaxy, a galaxy whose nucleus presents an emission spectrum characterized by broad lines of weakly ionized atoms. To date, eight non-redshift measurements yield a distance of 65.787 ± 44.256 Mpc (~215 million ly), which is outside the Hubble distance values.[2][3][1][4][5]
Supernova
One supernova has been observed in NGC 7343:
- SN 1974J (Type Ia, mag. 15.5) was discovered by Italian astronomer Leonida Rosino on 9 October 1974.[6][7]