LBN 21 (HII region)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 18 arcminutes across.
From South El Monte , LBN 21 is visible from soon after it rises, at 04:46, until soon before it sets at 15:59. 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
LBN 21
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Object type
HII region
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Position
| Right ascension: | 16h28m [1] |
| Declination: | −09°36' [1] |
| Constellation: | Ophiuchus |
| Angular dimensions: | 18.0 arcmin |