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 subject is a stellar nursery where star-formation is ongoing and the dark nebula Barnard 168 (B168) is an inseparable part of it, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon. [Wiki] |
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| Optic |
RC8 f/6 |
| Camera |
QSI 683 WS |
| Filters |
Astrodon L, R, G, B |
| Mount |
NEQ6 with EQASCOM
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Guide
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OAG with Lodestar
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Frame center
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RA 21:53:26 DEC 47:15:02 J2000
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Date
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August 2018
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Site
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Astrobioparco di Felizzano, AL, Italy
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| Exposures
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L - 48x900s @ -15C bin 1x1
R - 6x600s bin 2x2
G - 6x600s bin 2x2
B - 6x600s bin 2x2
Integration time - 15h
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Notes
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Raw data kindly provided by Davide Coverta
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