IC1805 SHO with strange artifact Other · sanyahun · ... · 7 · 321 · 3

sanyahun 0.00
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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

Image13_starless_superlum_pix copy_lowres.jpg20211218_160132.jpg20211218_160117.jpg
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Die_Launische_Diva 11.09
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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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MarcD 1.20
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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’
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sanyahun 0.00
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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!
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MarcD 1.20
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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?
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Die_Launische_Diva 11.09
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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.
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Tayson 4.52
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PN G135.6+1.0
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MarcD 1.20
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Die Launische Diva:
By performing a coordinate query in SIMBAD.


Thank you!
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