Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Cocoon Nebula  ·  IC 5146
cocoon surround in bloody sea of stars, Wei Li
cocoon surround in bloody sea of stars
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cocoon surround in bloody sea of stars

cocoon surround in bloody sea of stars, Wei Li
cocoon surround in bloody sea of stars
Powered byPixInsight

cocoon surround in bloody sea of stars

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Description

I completed this project last month, during post processing, I was unable to bring ha signal on the background even with 9 hours data.  Then I restarted this project and shoot 15 hour more ha. Bloody background finally showed up.  It could definitely use more data.  The cocoon nebula is not only having a pink shell, but also a thick bloody sea of millions and millions stars.  Trust your eyes, every white dot is a star, 

Cocoon nebula is reflection/emission nebula in constellation Cygnus. It has a bright head and a dark tail. What you see here is the looking from 2500 light years ago. Some people suggested to shoot this using a 8" telescope to focus on the core. However I like this broad view. It shows bloody sea of stars and long tail behind the core. 

Ha: 48x1800s
L:  42x600s
R/G/B: 15x600s each

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cocoon surround in bloody sea of stars, Wei Li

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