Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  HD202214  ·  HD202380  ·  HD239618  ·  LBN 449  ·  Sh2-129
The Giant Squid  (SH2-129)  CDK14, Rouz Astro
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The Giant Squid (SH2-129) CDK14

The Giant Squid  (SH2-129)  CDK14, Rouz Astro
Powered byPixInsight

The Giant Squid (SH2-129) CDK14

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Description

The Giant Squid  (SH2-129) 

Located in Cepheus and some 1300 light years from Earth, this object is relatively dim and proved quite challenging to image despite the faster optical setup at f/4.7 and the 3nm narrowband filters. Overall integration time was high and I would have preferred more Oiii data but the number of clear nights are limited now.

Shown here is Ha-OO mapped to RGB with a slightly modified expression:

R: Ha
G: ((Oiii*Ha)^~(Oiii*Ha))*Ha + ~((Oiii*Ha)^~(Oiii*Ha))*Oiii
B: Oiii

Below is a starless version emphasizing the nebulosity:
Starless CN.jpg

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The Giant Squid  (SH2-129)  CDK14, Rouz Astro