Cocoon Nebula
Description
IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.
Equipment and processing
Telescope: Orion 8 inch F5
Mount: Orion Atlas
Camera: ST 8300M
Filters: Baader LRGB
Guiding: PHD
Processing: PixInsight
Capture software: Maxim
Exposures: L: Bin1 14x300, RGB: Bin2 7x300
Location: Stokes State forest