Dwingeloo 2
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| Galaxy | List of galaxies |
|---|---|
| Observation data (Epoch J2000) |
|
| Constellation | Cassiopeia |
| Right ascension | 02h 54m 08.47s |
| Declination | +59° 00' 19.1" |
| Redshift | |
| Distance | 10 million ly |
| Type | IAm |
| Apparent dimensions (V) | |
| Apparent magnitude (V) | 20.5 |
| Notable features | Companion of Dwingeloo 1 |
| Other designations | |
Dwingeloo 2 is a small irregular galaxy. Dwingeloo 2 orbits Dwingeloo 1, much like NGC 5195 orbits the Whirlpool Galaxy (M51).
Dwingeloo 2 was first detected at radio wavelengths from the 21 cm emission line of neutral atomic hydrogen (known to astronomers as HI) in the course of follow-up observations after the discovery of Dwingeloo 1. Dwingeloo 1 and Dwingeloo 2 are thought to be members of the Maffei 1 group, a group of galaxies adjacent to the Local Group.
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