planetaryscience on 23-Apr-2019 03:38:19 GMT about PN A66 3
The central star here is not Gaia 515007024509005440, but is the dimmer Gaia 515007024501132928. The latter is obscured by the former, and lies just a couple arcseconds to the northwest of it.
The secondary is just barely visible in Pan-STARRS images and is well identified by Gaia DR2 at magnitude 20.7, consistent with a young white dwarf at the estimated distance of 8500 +/- 1700 LY (Stanghellini+, 2010)
It's difficult to tell if the brighter 17.8th magnitude star is related to the actual central white dwarf as the proper motion uncertainty for the white dwarf is +/- (2.05, 2.49) mas/yr and neither star has a proper motion over 5 mas/yr. Still, I doubt they're related and believe that the brighter is plausibly just a foreground star in the same line-of-sight location as the nebula's true central star, a much dimmer white dwarf.
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