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Basic object information

Object name: IC 5146
Popular name: Cocoon Nebula
Object type: Cluster with nebulosity
Size: 10.0'x10.0'
Number of stars: 20
Magnitude of brightest star: 9.6
Object classification: IV 2 p n
Description: F,L,iR,*9.5 m invl,br + drk masses invl
Notes: Cocoon neb;at end of dark streamer B168

Catalog information

RA (J2000.0): 21h 53m 24.0s
Dec (J2000.0): +47° 16' 00"

Constellation: Cygnus

Observer: Iiro Sairanen
Obs. place: Härskiänsaari, Ruokolahti, Finland
Date/Time: 13/14.10.2004 23:35

Telescope: Newton 406/1830mm

Height: 67°
Visuality: III
Weather: +2°C, windy

Fine emission nebula with sparse open cluster of 10-12 mag stars. Three brighter patches in the middle are visible with direct vision. Almost the whole 28' field is full of fainter nebulosity with averted vision. The nebula is generally N-S oriented, brighter overhang in west edge.

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