LDN 1640 (Dark nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , LDN 1640 is visible in the dawn sky, rising at 01:07 (PDT) and reaching an altitude of 45° above the south-eastern horizon before fading from view as dawn breaks at around 05:31.
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Name
LDN 1640
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Object type
Dark nebula
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