Abell 31 (SH2-290), what I am calling The Moon Jelly Nebula, is a very dim Planetary Nebula in Cancer.
Even with 32hrs of integration time it was a lot of effort to pull it out nicely from the background. Ha was the strongest, and the core full of OIII was well visible. SII on the other hand was almost nonexistent! Abell31 is described as "ancient" but didn't find more on the age and lies around 2000 lightyears away. It being so old is why it is sooo dim as all the gases are dispersing and very far from the central white dwarf now greatly reducing the gasses ionization.
In the surrounding starfield there is a handful galaxies and a lot of the discovered by GAIA and are very dim and faint. There is no distance data to any of the GAIA galaxies I could find either. The other interesting item is a very close double star HD76037A&B, they are just shy of 300 lightyears away and only 9 arcsec apart. Although I couldn't find if they are true binaries or not, their parallax would suggest they probably are: 10.9939 and 11.0133 milli-arcsecs which is 296.01lyrs and 296.5lyrs away.
Link to a video I made on this image:
https://youtu.be/wxrax_QcQS4Comments always appreciated!
Moon Jelly look alike (compared to the Ha mono channel)
Close in of Abell31
HD76037A&B
IC523 and friends
GAIA Galaxies:
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