Deep sky · Galaxy in Ursa Major · M 101 · NGC 5457
M 101
Pinwheel Galaxy
The Pinwheel Galaxy: a huge face-on spiral, nearly twice the width of the Milky Way.
- Type
- Galaxy
- Designations
- M 101 · NGC 5457
- Constellation
- Ursa Major
- Apparent magnitude
- 7.9
- Apparent size
- 29′ × 27′
- Position (J2000)
- RA 14h 03m · Dec +54° 21′
History
In 2011 a supernova here, SN 2011fe, was caught within hours of exploding. It reached binocular brightness.