Decided to re-process my image of IC 1805 from 2021 and to my surprise, what I originally thought to be an artefact at the 12 o'clock position, was indeed WeBo 1 Planetary Nebula (PN G135.6+01.0). Will definitely plan to get some time on the PN with my Edge HD.

The Heart nebula (IC 1805) is a large emission nebula and glows brightly in red light emitted by its most prominent element: hydrogen. The red glow and the larger shape are all powered by a small group of stars near the nebula's center. In the center of the Heart Nebula are young stars from the open star cluster (Melotte 15) that are eroding away several dust pillars with their energetic light and winds. The open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar that was expelled millions of years ago. The Heart Nebula is located about 7,500 light years away toward the constellation of Cassiopeia. To the bottom right is the Fishhead nebula (IC 1795) which is itself located next to IC 1805, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. (NASA)

More on WeBo 1 (PN G135.6+01.0):
WeBo 1 (PN G135.6+01.0), a previously unrecognized planetary nebula with a remarkable thin-ring morphology, was discovered serendipitously on Digitized Sky Survey images. The central star is found to be a late-type giant with overabundances of carbon and s-process elements. The giant is chromospherically active and photometrically variable, with a probable period of 4.7 days; this suggests that the star is spotted, and that 4.7 days is its rotation period. We propose a scenario in which one component of a binary system became an asymptotic giant branch (AGB) star with a dense stellar wind enriched in C and s-process elements; a portion of the wind was accreted by the companion, contaminating its atmosphere and spinning up its rotation. The AGB star has now become a hot subdwarf, leaving the optical companion as a freshly contaminated barium star inside an ionized planetary nebula. (The Astronomical Journal, Volume 125, Issue 1, pp. 260-264. 2003)