NGC6639 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
Finder chart
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Click to enlarge.
From Cambridge , NGC6639 is not observable – it will reach its highest point in the sky during daytime and is no higher than 5° above the horizon at dusk.
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Name
NGC6639
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Object type
Open cluster
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Visibility from Cambridge
All times shown in Cambridge local time.