Wednesday 17 February 2021

IC 5146 The Cocoon nebula

IC 5146 lies in the constellation of Cygnus the Swan. I took this image using my 80mm, f/6.3 refractor, a Vixen Atlux mount, PHD auto-guiding, an Atik 383L mono CCD camera and a set of Astronomik narrowband filters SII, OIII and H-alpha.

I captured five minute sub frames with matching dark frames and combined them with flat fields to reduce the effect of vignetting in the final image.

The total exxposure times were 60 minutes using SII and OIII filters and 90 minutes using a H-alpha filter.

Click on an image to get a closer view

RGB colour with narrowband luminance


Hubble palette


Narrowband colour with RGB colour