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RA: 20h 32m 50.2s
Dec: +09° 55′ 38″
Ch: MSA:1241, U2:209, SA:16
Ref: SIMBAD, Corwin (2004)
Type: galaxy (in pair), SBab
Mag: B=13.7, V=?
Size: 2.089′ x 0.562′
NGC 6928 = IC 1325, which see.
This is one of a handful of galaxies in Delphinus. It is the brightest member of a foursome located 1.5° south of Epsilon Delphini.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.5 mag galaxy. Their coded description reads EL,BM,SLDIF,KNORCOM RI*FLD.
Houston notes: "Its cigar-shaped disk is about 2' long and magnitude 12.5. An 8-inch scope should easily snare the object on a good night, but a larger aperture will probably be needed to see its companions", all lying within a quarter of a degree.
Date: 10/04/1999 ; Loc.: Anderson Mesa, Flagstaff AZ; Weather: Clear, calm, temps in mid 30's; Scope: 10-inch, f/4.5 equatorial mount Newtonian; Eyepiece (Mag.): 18 mm SWA w/ 3x TeleVue Barlow (190x); 8.8 mm UWA (129x)
NGCs 6928 and 6930 were found near a triangle asterism of 9th to 12th magnitude stars. These spiral galaxies were quite bright at 12.2 and 12.8 magnitude, respectively. NGC 6928 appeared the larger of the two at 60" x 20" in dimension. NGC 6930, three arcminutes to the South, showed as a 20" diameter haze. A stellar core was visible in both. A pair of 9th magnitude stars flanked 6930 to the Southeast. Nearby NGCs 6927 and 6927A, a pair of 15th magnitude galaxies, require larger aperture and were not seen.
Steve Coe, observing with a 13" f/5.6, notes: "Faint, small, elongated 3 X 1 in 90, little brighter middle at 150X. There is an 11th mag star 1 arcmin north."
POSS: pa100. m14 * 15" NE of center; m12.5 * is 1'.3 ENE.
13cm - 60x: fairly f, small. sl elong E-W. m13 * on NE vis. well concen but no
consp nuclear concen. BS, 5Sep1983, USNO.
15cm - not vis. BS, 6Jun1981, Slate Mtn.
- fairly f @ 80x. 140x: elong E-W, 1'x0'.3. m14 * NE of center seems just w/in halo; core reaches not quite to it. mod broad concen in halo, core also broadly concen but a pedestal rather brtr than halo. * further NE is m12.5. BS, 22Jun1990, Anderson Mesa.
25cm - seeing poor, vis @ 125x. elong E-W, 1'x0'.4. m12 * ENE of center. broadly brtr to `confused' center (f incipient detail). BS, 6Jun1981, Slate Mtn.
30cm - 250x: 1'.2x0'.5 in pa E-W. a f * vclose NE makes an accurate pa hard to determine. sl concen to rounder core w/o nuc. elong clear at lox: pa100. CBL, 2Sep1983, USNO.
The Messier objects
The Bennett objects
The Caldwell list
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