NGC 5204
| NGC 5204 | |
|---|---|
NGC 5204 (Hubble Space Telescope) | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 13h 29m 36.5s |
| Declination | +58° 25′ 07″ |
| Redshift | +201 km/s |
| Distance | 4.3-4.8 Mpc (14-14.5 million ly) |
| Apparent magnitude (V) | 11.73 |
| Characteristics | |
| Type | SA(s)m |
| Apparent size (V) | 5.0′ × 3.0' |
| Other designations | |
| UGC 8490, PGC 47368, ZWG 294.39 | |
NCG 5204 is a Magellanic spiral galaxy located about 14.5 million light-years away from Earth in the constellation of Ursa Major and is a member of the M101 Group of galaxies. It has a galaxy morphological classification of SA(s)m and is highly irregular, with only the barest indication of any spiral arm structure. The galaxy's most prominent feature is an extremely powerful X-ray source designated NGC 5204 X-1. This has resulted in the galaxy being the target of several studies due to the strength of the source and its relative proximity to Earth.