New to me! Thought I would share... Tadpole bubble!

[MarkInSpace]

I was looking at some starless images of the southern tadpoles and I realised that there is a lovely OIII bubble, above the tadpoles. Unless this is a processing error on my side (very possible!), this is a fun object because it seems to be entirely in OIII, not sure what the name is. Maybe someone can confirm this is a real target not an artifact?
Anyway - if real, an interesting target for those of you with longer FL.
The OIII image details:
25 X 300s 7nm Baader OIII filter
ASI2600MM
SkyRover 115+0.8 reducer/flattener
Processed in Pixinsight, PS
plugin:StarXterminator

[joshman]

I believe that is an artifact. A filter halo that is left behind when doing star removal. I've got the same artifact with my Baader 7nm OIII filter on my 1600MM.

sorry to burst your bubble....

[Nikolas]

It's no artefact it's definitely a bubble look at my attachment of my image

[kosborn]

It's definitely real. Have a look at my image (https://www.iceinspace.com.au/forum/attachment_browse.php?a=306081) and Paul's (DiscoDuck's) image (https://www.iceinspace.com.au/forum/attachment_browse.php?a=305808).

[Nikolas]

Why are you directing that at me? I just posted it's real :)

[kosborn]

Just affirming you post. Sorry if that's not wanted. I'll keep quiet next time!! :shrug: ;)

[Nikolas]

nah all good in that respect I just thought you were attributing your answer accidentally to me :) cheers

[joshman]

it looks like we're talking about different things here....

[DiscoDuck]

Yeah, to me it looks like an ear.

Maybe the mythical Final Front Ear that Captain Kirk was always talking about!