LDN 640 (Dark nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 76 arcminutes across.
Finder chart
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From Cambridge , LDN 640 is visible in the dawn sky, rising at 00:29 (EDT) and reaching an altitude of 44° above the south-eastern horizon before fading from view as dawn breaks at around 04:58.
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Name
LDN 640
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Object type
Dark nebula
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Visibility from Cambridge
All times shown in Cambridge local time.