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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From Cambridge , NGC6639 is visible in the morning sky, becoming accessible around 00:27, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 03:18, 34° above your southern horizon. It will be lost to dawn twilight around 03:52, 33° above your southern horizon.
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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.