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Type: planetary nebula
Mag: B=11.8, V=15.5
Hartung notes: "This planetary is a tiny bright ellipse about 8 x 6 arcsec in pa 0 deg; it lies in a Milky Way field well sown with small stars, and though very low for many southern observers, 10.5cm shows it."
Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.5M; 8" x 6" extent; very small and faint; very soft fuzz-ball at >300x; use N-filter."
(PK100-5.1) Mag=11.3. Lacerta: 22h, 23.9m; +50° 58' Since this object was not included in Luginbuhl & Skiff's handbook mentioned above, we were worried that it might not be easy to spot, despite the inclusion in Ferguson's table of objects found with his Questar. Yet Ferguson apparently noted its high surface brightness, since it was visible to him despite its 6" diameter. We found it indeed hard to locate. It was stellar-appearing (about 20" diameter) at low powers; the O-III filter helped isolate it in the starry field. Without the filter, it seemed to have about the same luminance as most of the stars nearby. Tenacity and patience -- and the oxygen filter -- will help in locating this challenging object.
= PK100- 5 1
POSS: m10 * 1'.75 S/sl W.
PK: br * 1'.9 S.
15cm - m11.0 sub*ar pn recog @ 80x as having flat brtness profile. m10 * at 2'
in pa190; pn is 0.8 mag fntr. 195x shows sl elong ~N-S and *ar point
occas @ N end. pec pale blue-grey. BS, 14Sep1990, Anderson Mesa.
25cm - elong N-S. sm w/*ar nuc. seen @ 180x. sharp taper at S end and dkning (?)
in center. Roof.
- *-like @ 190x. grey, sl unsharp compared to *s. BS, 30Aug1981, Anderson
30cm - 476x: N 2' of m11.5 *. br core. uniformly br; blue-grey. br spot W of
Alldays (22.50S, 20.12E, 770m).
12-inch f/10 SCT (218x, 346x)
12th magnitude planetary nebula, which appears slightly oval at high power. Very tuff.. What amaze me more than the small out of focus dot was the long string of not less than 10 stars about 11magnitude in a N to SW direction about 7' towards the NW. Amazing. Difficult but grows with averted vision.
Observing site: Little Tycho Observatory
[22h 23m 54s, 50° 58m 0s] Faint and tiny, like Neptune's ghost. Best in the 6mm.
The Messier objects
The Bennett objects
The Caldwell list
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