IC 5146 / Caldwell 19 the Cocoon Nebula


Ian Russell

Sutton Courtenay, Oxfordshire

Scope: TS Optics Photoline 130 Super APO
Mount: iOptron CEM60 EC
Camera: Atik 490ex with Astrodon RGB filters
Guiding: Atik OAG, QHY5L II, PHD2

This is an image of the Cocoon Nebula (Caldwell 19), the gorgeous emission and reflection nebula in Cygnus.

I really like this object. The central emission part of the nebula has an intriguing shape and the blue reflection nebula surrounding it gives a ghostly feel to it.

This was first light for my new 130mm super APO scope and Astrodon filters and I was really pleased with how the new kit performed.

Data is R: 28 x 300s, G: 24 x 300s, B: 24 x 300s for a total integration time of just over 6 hours (I’d previously uploaded a version with less data).