There do not appear to other versions on Astrobin. Apparently first observed on 9/24/2011.
Probably the last one I can visualize until the Fall (2024). About 2/3 of these are < 30 Arc" and not really visible on my equipment.
No O-III here that I could see. This small blob is mixed in with substantial H-alpha clouds and was very difficult to discern.
Information for this image is from the
Isaac Newton Telescope Photometric Hα Survey of the Northern Galactic plane (IPHAS) PN Catalogue.
It is apparently 55 arcseconds across. Morphology is supposedly Bipolar asymmetrical (Ba). You may be able to see this in the H-alpha blow-up:
I believe the imaging and spectroscopy was done at "SM" or San Pedro Martir 2.0m Telescope (SPM) in Mexico with its Boller& Chivens (B&Ch) spectrograph and OS.
Note below the size was based on a 120s H-alpha exposure on a 2m telescope.
Published data:
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