UGC 5336
The galaxies M81 (below) and M82 (above) captured by the Galaxy Evolution Explorer . Slightly to the left of M81 is the dwarf galaxy UGC 5336, a satellite galaxy of M81.
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| Constellation | Big Bear |
| Position ( equinox : J2000.0 ) | |
| Right ascension | 9h 57m 32s |
| declination | + 69 ° 2 '45 " |
| Appearance | |
| Hubble type | in the |
| Apparent brightness (visual) | +14.3 m |
| Apparent brightness (B-band) | |
| Apparent diameter | 2.5 '× 2' |
| Surface brightness | mag / arcmin 2 |
| Physical data | |
| Affiliation | M81 group , Virgo supercluster |
| distance | 12.06 million light years |
| Redshift | +0.000153 ± 0.000020 |
| Heliocentric radial relative speed | 46 ± 6 km / s |
| Absolute brightness | |
| Absolute diameter | 10,000 light years |
| Dimensions | Solar masses |
| Catalog names | |
| UGC 5336, PGC 28757, MCG + 12-10-012, DDO 66, KDG 62, Holmberg IX, Mailyan 48 | |
UGC 5336 (also Holmberg IX ) is an irregular dwarf galaxy in the constellation Great Bear , about 12 million light years away from Earth . The star system is a companion of the larger spiral galaxy Messier 81 .
discovery
The galaxy UGC 5336 was discovered by Swedish astronomer Erik Bertil Holmberg in the 1950s .