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RA: 20h 10m 26.68s
Dec: +16° 55′ 21.3″
Ch: MSA:1218, U2:208, SA:16
Type: planetary nebula
Mag: B=12.7, V=14.8
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag planetary nebula.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11M; 5" diameter; 15M center star; tiny! in a group of 7M stars."
Steve Coe, observing with a 13" f/5.6, notes: "Pretty bright, very small, not brighter in the middle. It is just a non-stellar disk at 220X. Averted vision makes it grow. Camp 613 13"--330X pretty faint, very small, not brighter middle, round, just barely larger than Airy disk, has the dull texture of a planetary, not shiny like a star."
The Messier objects
The Bennett objects
The Caldwell list
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