Abell cluster supplement 21 (Galaxy cluster)
![Abell cluster supplement 21 Image of Abell cluster supplement 21](https://in-the-sky.org/image.php?style=medium&userimg=19910715_115719_22534c7285d8.png)
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
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Object type
Galaxy cluster
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All times shown in Cambridge local time.