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Nebula

Cocoon Nebular

ic5146 2026-02-02

Astrophotograph of ic5146: Cocoon Nebular
Cocoon Nebularic5146

01 / Capture

Object
ic5146
Object type
Nebula
Captured
2026-02-02
Exposure
lots

02 / Imaging train

Equipment
Celestron 11 Edge HD + Fast Star · Skywatcher EQ6-R-Pro · ZWO 1600MM · ZWO EFW · SHO
Telescope
Celestron 11 Edge HD + Fast Star
Mount
Skywatcher EQ6-R-Pro
Camera
ZWO 1600MM
Filter wheel
ZWO EFW
Filter set
SHO
Scope type
SCT

03 / Processing

Workflow
PixInsight

Image license: This gallery image is published under a Creative Commons license.

nebula

Object notes / Wikipedia

Wikipedia thumbnail for IC 5146

IC 5146

IC 5146 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 shines at magnitude +10.0/+9.3/+7.2. Its celestial coordinates are RA 21h 53.5m , dec +47° 16′. 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.

Read more on Wikipedia

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