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RA: 17h 51m 48.94s
Dec: +23° 04′ 19.1″
Ch: MSA:1201, U2:158, SA:8
Type: galaxy (in group), E
Mag: B=12.8, V=?
Size: 2.089′ x 1.819′
Sketched and described.
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads E,R,BM,HISB,RI*FIELD.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.2M; 40" x 30" extent; small, faint oblong with very much brighter center and stellar nucleus; tough to separate from crowded background; makes right triangle with 12M star 3' to NW and 12.5M star 3.5' to NE."
(e-mail: email@example.com, web: http://www.west.net/~jbc/)
Instrument: 8-inch Dobsonian reflector Location: Carpinteria, CA, USA
Light pollution: light Transparency: good Seeing: fair
Time: Sun Jun 29 08:30:00 1997 UT Obs. no.: 165
Unable to spot this m12.2 E3 galaxy. Pretty sure I was looking at the right place, but no sign of it at 49x.
POSS: pa~60. * vis only on E print, still burned in. triangle *s: m10.5
2'.4 NW; m11 2'.6 NE.
15cm - * seen.
- spotted @ 50x but mistaken for dbl * until fld correctly ident. 140x & 295x: looks like m13 * sup on WSW side of otherwise f gx. can't tell much about gx other than it's not lg. BS, 29Jun1989, Anderson Mesa.
25cm - vsm, pretty f w/m12.5 * inv on W side. elong ~E-W, 0'.7x0'.5. can't tell about core or nuc properties due to *.
30cm - startlingly-br * embedded in gx is misleading: gx mostly E of m13.5 *. quite sm, < 1' diam, elong confusing due to off-center *, but seems elong E-W(?). not very concen for ellip type; * seems more obvious at 149x than at higher power.
- found as S point of triangle of m12 *s 1'.5 on-a-side. vsm w/br *ar nuc. at 238x nuc dominates w/50" gx having definite edges. perhaps dk spots, but maybe only contrast w/nuc.
The Messier objects
The Bennett objects
The Caldwell list
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