Collinder 21 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
Click and drag the chart above to pan around the sky, or use the mouse wheel to zoom.
Click to enlarge.
From Cambridge , Collinder 21 is not observable – it will reach its highest point in the sky during daytime and is no higher than 8° above the horizon at dawn.
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which appear below.
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Name
Collinder 21
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Object type
Open cluster
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Visibility from Cambridge
All times shown in Cambridge local time.