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RA: 18h 11m 52.47s
Dec: −28° 10′ 42.3″
Ch: MSA:1414, U2:377, SA:22
Type: planetary nebula
Mag: B=12.5, V=10
Discovered by Pickering; described in the NGC as "planetary nebula; stellar."
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag planetary nebula.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "13M; 10" diameter; small and faint; looks stellar; difficult! between and to the SW of two stars, 7M and 8M."
Steve Coe, observing with a 13" f/5.6, notes: "Pretty bright, small, very little elongated 1.2 X 1 in PA 165 at 285X. This planetary is light green and no central star was seen at any power."
In the online Southern Observer (article "The planetary nebulae of Sagittarius") this planetary is recorded as: " Locking in RA on the previous object [NGC 6563], slew 6 degrees N in dec and you will locate this rather small (10") mag 11.6 uniformly illuminated slightly greenish, round disc with a very faint star on the N edge. Reminiscent of IC 418 in Lepus. RA 18.12 Dec 28.1. Winter."
The Messier objects
The Bennett objects
The Caldwell list
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