Abell cluster 21 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Fairfield , Abell cluster 21 is visible in the evening sky, becoming accessible around 17:38 (EST), 57° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:07, 77° above your southern horizon. It will continue to be observable until around 01:46, when it sinks below 21° above your western horizon.
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Name
Abell cluster 21
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Object type
Galaxy cluster
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Visibility from Fairfield
All times shown in Fairfield local time.