While browsing through my older images, I found one from 2017, taken with Canon 400mm FD + (modded) 450D, stack 16x60 sec, ISO1600.
The area is around X Carinae (1st image, at the upper left corner), and on the right side of the frame interesting object is visible, so I thought it may be good to explore it in greater detail.
Last night, I took the stack 73x15 sec, with C11+FR, Canon 60D (modded) @ISO12800.
I couldn't find more info on this nebula (not that I REALLY tried..), except on this link, it is visible on the right side of the frame:
https://astropixels.com.au/gallery/W...r_20220615.png.