Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Sh2-129
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Sh2-129 and OU4, or a bat and a squid, alistairmac
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Sh2-129 and OU4, or a bat and a squid

Getting plate-solving status, please wait...
Sh2-129 and OU4, or a bat and a squid, alistairmac
Powered byPixInsight

Sh2-129 and OU4, or a bat and a squid

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Description

Whilst imaging Sh2-129, The Flying Bat Nebula i decided to try for OU4, or The Squid Nebula. Initially I intended a conventional HaRGB but this ended up a serious challenge as 2x2 O111 frames of 20 minutes barely showed a thing. In the end i used 19.25 hours of Ha (900" frames) and 35.5 hours of O111 (900" and 1200" frames). I have the rgb but haven't used it here yet.

I can understand why this was undiscovered until 7 years ago; a seriously faint object 😉

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Sh2-129 and OU4, or a bat and a squid, alistairmac