LDN 840 (Dark nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 19 arcminutes across.
From South El Monte , LDN 840 is visible from soon after it rises, at 02:49, until soon before it sets at 18:44.
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Name
LDN 840
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Object type
Dark nebula
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Position
| Right ascension: | 19h54m [1] |
| Declination: | +35°07' [1] |
| Constellation: | Cygnus |
| Angular dimensions: | 19.9 arcmin |