IC1805 SHO with strange artifact

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sanyahun avatar
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

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Die Launische Diva avatar
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!
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Marc Dickinson avatar
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’
sanyahun avatar
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!
Marc Dickinson avatar
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?
Die Launische Diva avatar
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.
Tayson avatar
PN G135.6+1.0
Marc Dickinson avatar
Die Launische Diva:
By performing a coordinate query in SIMBAD.


Thank you!
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