Collinder 21 (Open 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 South El Monte , Collinder 21 is visible in the dawn sky, rising at 00:30 (PDT) and reaching an altitude of 46° above the eastern horizon before fading from view as dawn breaks at around 04:31.
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Name
Collinder 21
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Object type
Open cluster
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Visibility from South El Monte
All times shown in South El Monte local time.