LDN 21 (Dark nebula)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.

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From Cambridge , LDN 21 is visible from soon after it rises, at 16:11, until soon before it sets at 00:48.

Name LDN 21
Object type Dark nebula
Position
Right ascension:17h29m [1]
Declination:−25°56' [1]
Constellation:Ophiuchus

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