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 will become visible at around 19:14 (PDT), 52° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:21.
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Name
Barnard 139
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Object type
Dark nebula
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Sources