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Catalogue and alternative designations

IC 5146, Cocoon Nebula

Type Emission/Reflection Nebula
Position 21 53.5, +47 16
Constellation Cygnus
Camera and Telescope QSI 583 WSG, 20cm Maksutov Newtonian courtesy Dean Salman
Focal Ratio F4
Exposure Details HaRGB 400:120:110:160 with Astrodon series 2 filters
Description Visually, this interesting nebula is about 12 arc minutes across and about 4000 light years distant.  It is at the end of a dark nebula Barnard 168.  For a complete description, courtesy Rob Gendler, see: