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Type: planetary nebula
Mag: B=?, V=?
Synonyms: H III-696
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "vF, S, R, lbM, resolvable, 1' diameter."
(Sulentic and Tifft 1973) notes that this is a 13.0 mag planetary nebula.
by Jim Lucyk: Sky&Tel. 10/69 p227.
Marling, J.B. (1986) In pursuit of planetaries. Sky&Telescope, Jun, 631.
15cm - pretty f but lgr @ 80x than N7076 just obs'd. ident certain w/[OIII], which gives mod enhancement. 30" diam @ 140x, circ, nrly uniformly br. m14.0 * off SE side. BS, 8Sep1991, Anderson Mesa.
25cm - found @ 90x. f patch. m13 * on SE edge. averted vis obj, round w/dkr center.
30cm - vsl broad concen. m13.8 * on SE. poss elong pa30. smooth w/o detail. threshold * on S edge, perhaps causing elong appearance.
The Messier objects
The Bennett objects
The Caldwell list
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