IC 5146 | Cocoon Nebula
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.
Sony a7s astromodified
APM 152/1200 LZOS Refractor
Homemade fork mount
No filtering on this shot
161 x 120 seconds (5.3h)
Stacked and calibrated with flats, darks and bias in Astropixelprocessor
Edited with Pixinsight and Photoshop