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The Clamshell Nebula Sh2-119 HaOiii, Göran Nilsson
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The Clamshell Nebula Sh2-119 HaOiii

Getting plate-solving status, please wait...
The Clamshell Nebula Sh2-119 HaOiii, Göran Nilsson
Powered byPixInsight

The Clamshell Nebula Sh2-119 HaOiii

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Description

The Clamshell nebula is given the number 119 in the Sharpless catalogue and is a large primarily Ha emitting nebula in Cygnus a few degrees "left" of the much more imaged North American Nebula. It is about 2000 light years from us.

For this image I used Star XTerminator in PS to boost the nebulosity before bringing the stars back. I made a synthetic green channel by 50:50 mixing of the Ha (69 x 5 min) and Oiii (30 x 5 min) data.

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The Clamshell Nebula Sh2-119 HaOiii, Göran Nilsson