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 morning sky, becoming accessible around 23:15, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 04:38, 83° above your southern horizon. It will be lost to dawn twilight around 05:13, 79° above your south-western horizon.
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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.