The little Beauty and the big Beast: Sh2-181 and Sh2-183

[gorann]

This is a RASA NBZ (Ha+Oiii) image (ASI2600MC) from the other night (about 6 hours) that I mixed with Ha data from my Esprit 100 (ASI1600MM) caught back in 2020 (another 6 hours).

Sh2-183 is one of the ugliest nebulae I know, just looks like a really scary freak, but next to it is the smaller Sh2-181 which here my RASA rig managed to pick up some pretty nice Oiii signal from. I have not seen that in any other images of it before. But then these are very faint nebulae and there are not many good images of them.

Comments welcome as always

Cheers & CS, Göran

[glafnazur]

Nice Goran, I particularly like Sh2-181 👍

[gorann]

23 minutes ago, glafnazur said:

Nice Goran, I particularly like Sh2-181 👍

Thanks Dave! Yes, Sh2-181 is quite likable👍

[ollypenrice]

Yes, it does look a bit grumpy!

Great to see these, though. As ever, you find interesting ones.

Olly

[gorann]

27 minutes ago, ollypenrice said:

Yes, it does look a bit grumpy!

Great to see these, though. As ever, you find interesting ones.

Olly

Thanks Olly! I am getting more and more curious about that Oiii signal connected to Sh2-181. Here is a starless crop and it reminds me of the Oiii shells of the Crescent. I wonder if there is a similar origin ( colliding stellar winds according to Wiki).

Göran