Barnard 309 (Dark nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , Barnard 309 is visible from soon after it rises, at 04:22, until soon before it sets at 14:08. 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 309
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Object type
Dark nebula
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Position
| Right ascension: | 18h23m [1] |
| Declination: | −24°01' [1] |
| Constellation: | Sagittarius |
| Angular dimensions: | 5.0 arcmin |