Abell cluster 821 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Abell cluster 821 is visible in the evening sky, becoming accessible around 20:00 (PDT), 36° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:39, 51° above your southern horizon. It will continue to be observable until around 02:36, when it sinks below 21° above your south-western horizon.
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Name
Abell cluster 821
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Object type
Galaxy cluster
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Position
| Right ascension: | 09h34m [1] |
| Declination: | −04°41' [1] |
| Constellation: | Hydra |
| Magnitude: | 17.70 (R) [1] |