IC 5146 | Cocoon Nebula

Details

IC 5146, also known as Cocoon Nebula , is a astronomical nebula with an embedded open star cluster in the constellation Swan. The star cluster is designated Collinder 470.

The nebula has an apparent extent of about 10 arc minutes and is about 3000 light years away from Earth. Its physical extent is thus about 10 light years. 

Recording

Camera

Sony a7s astromodified

Lens/telescope

APM 152/1200 LZOS refractor

Tripod/mounting

Self-made fork mount

Filter

No filtering for this shot

Exposure

161 x 120 seconds (5.3h)

Editing

Stacked and calibrated with flats, darks and bias in Astropixelprocessor

Edited with Pixinsight and Photoshop

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