Paul, it’s an object discovered in WISE data. It is an elliptical ring, visible faintly in W1, but mainly in W2.
The team have taken a J band image from the Palomar 200-inch telescope, but could only get a faint detection of the nebula that overlaps the star inside the ring. They weren’t been able to detect the ring itself. While the ring is only detected in the infrared so far, the inner nebula does have an HSC (an instrument on the Subaru telescope) r-band detection from an archival PI large area survey, so we know that there is some visible light stuff going on too. R band on subaru coincides with the 656nm Halpha line, so we think that’s the best shot at getting a detection from the ground. While we don’t see a sign of a white dwarf at the centre of the ring, it is theoretically possible that this is some sort of strange planetary nebula or supernova remnant.
The coordinates of the approx centre of the ring are 04:27:05.688 +34:15:00.00
Peter