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RA: 23h 03m 15.75s
Dec: +08° 52′ 25.9″
Ch: MSA:1257, U2:213, SA:17
Type: galaxy (Seyfert 1), SBa
Mag: B=13, V=13
Size: 1.737′ x 1.23′
Synonyms: H III-230
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "eF, eS, 240 left some doubt."
Listed as No. 298 in Arp's "Atlas of Peculiar Galaxies" (Astrophysical Journal Supplement, vol. 14, 1966.) He remarks "absorption, knots. Note apparent re-entrant spiral arm on southern galaxy."
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.5 mag galaxy. Their coded description reads SLEL,HISB,VFDIFPCHRG COM 1'NF.
This galaxy is listed in the "Third Reference Catalogue of Bright Galaxies" as being a bright Seyfert galaxy. The integrated B magnitude of the stellar system (excluding the nucleus) = 12.80, and the B magnitude of the quasi-stellar nucleus = 14.7-15.5.
Steve Coe, using a 13.1" f/5.6, notes: "NGC 7469 Very faint, small, somewhat elongated and not brighter in the middle. It was just seen at 100X, higher powers did not seem to make this galaxy more noticeable."
A comparison star chart for this galaxy with a variable nucleus appeared in Sky&Telescope, May 1978, p372. A 24' wide chart with 9 comparison stars is given, listing V, B-V and U-B values.
Photo Index by Jim Lucyk: Sky&Tel. 5/78 p374.
Hamilton, D., Keel, W. & Nixon, J.F. (1978) Variable galactic nuclei. Sky&Telescope, May, 72.
= Arp 298
POSS: m15 * 30" E; gx I5283 1'.3 NE.
15cm - f; mod powers best. no shape evident, avertedly a patch of light seen.
- mod f but vsm modhisfcbr gx. misplotted on U2000: should be 1m W of
plotted pos (RNGC pos error). circ, 30" diam, reaching just to m14.5 *
on E edge. mod strong concen to consp *ar nuc. 140x. BS, 19Nov1989,
25cm - faint. sm *ar nuc or m12 * inv. inattentive viewing shows a roughly
round spot fading from center. no irregs.
30cm - *ar, m13. forms flat triangle w/two m8.5 *s NNW & SSW. of little extent,
45" diam. some core fading rapidly to losfcbr halo. no detail.
The Messier objects
The Bennett objects
The Caldwell list
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