IC1805 SHO with strange artifact

Hello everyone!

Can anyone tell me what am I seeing here? I reprocessed this image a few times, it was always there. It is not visible on a single sub, but it is visible on the OIII stack I think (I'm at work at the moment, have to check when I'm home). I'm new to the hobby, sorry if it's nothing, just curious. Thanks!

Sandor

Hello! That's not an artifact, but the small planetary nebula PN G135.6+1.0 (which is also known as WeBo 1), and it is bright in the OIII line, as you have discovered!

I've noticed this on several images and my own, I can't find anything referring to it. I was planning on imaging it with C14, it seems to be at ~ 2h 40' 12"
61 deg 10’

Die Launische Diva:
Hello! That's not an artifact, but the small planetary nebula PN G135.6+1.0 (which is also known as WeBo 1), and it is bright in the OIII line, as you have discovered!

That is really cool, thank you!

Die Launische Diva:
Hello! That's not an artifact, but the small planetary nebula PN G135.6+1.0 (which is also known as WeBo 1), and it is bright in the OIII line, as you have discovered!

Nice to know! I couldn't find the listing number on a Pixinsight plate solve, just curious, what did you use to find it was PN G135.6+1.0?

Marc Dickinson:
Die Launische Diva:
Hello! That's not an artifact, but the small planetary nebula PN G135.6+1.0 (which is also known as WeBo 1), and it is bright in the OIII line, as you have discovered!

Nice to know! I couldn't find the listing number on a Pixinsight plate solve, just curious, what did you use to find it was PN G135.6+1.0?

By performing a coordinate query in SIMBAD. This is what SIMBAD returns with the approximate coordinates you have provided in your previous post.

Die Launische Diva:
By performing a coordinate query in SIMBAD.

Thank you!

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