Abell cluster supplement 21 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Abell cluster supplement 21 is not observable because it lies so far south that it never rises above the horizon.
|
Name
Abell cluster supplement 21
|
Object type
Galaxy cluster
|
Position
| Right ascension: | 00h15m [1] |
| Declination: | −84°04' [1] |
| Constellation: | Octans |
| Magnitude: | 16.10 (R) [1] |