Barnard 139 (Dark nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Barnard 139 is visible from soon after it rises, at 07:28, until soon before it sets at 19:26. 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
Barnard 139
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Object type
Dark nebula
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Sources