Late in chiming in here but finally got to this on a very transparent night of May 25, 2014. I was unable to find it unfiltered or with my trusty NPB filter in my 18" f/3.7 starmaster scope and this was indeed a puzzle as I did not have the nice notes above to indicate I had to use an H-Beta filter. I asked Steve Gottlieb about unusual sharpless objects and he recalled that H-Beta may be required for a few. Lone behold that is what it took on this object. I was able to see glow only around a third to half of the star that I called out as 1/20 fov or 1' long in my 8mm Delos with no paracorr and ONLY with the H-Beta filter. I was not able to see the extension that is shown in the attached drawing made by Uwe that shows a thin blade going around the other 1/4 circumference of the star. Conditions were SQM 21.4 sort of sky at 2:30am with very good transparency.
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