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 South El Monte , LDN 640 is visible from soon after it rises, at 04:08, until soon before it sets at 16:36. Always take extreme caution when trying to make daytime observations of the Moon while the Sun is above the horizon.
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Name
LDN 640
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Object type
Dark nebula
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Visibility from South El Monte
All times shown in South El Monte local time.