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RA: 23h 28m 27.97s
Dec: +22° 25′ 15.6″
Ch: MSA:1184, U2:169, SA:9
Type: galaxy (HII), SBc/Sc
Mag: B=15.3, V=?
Size: 2.238′ x 1.584′
Synonyms: H II-226
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "F, pL, bM, elliptical."
Listed as No. 28 in Arp's "Atlas of Peculiar Galaxies" (Astrophysical Journal Supplement, vol. 14, 1966.) He remarks "Note straight heavy arm."
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads S,HISB,STELNUC,APP S B IRR RG.
Steve Coe, using a 13.1" f/5.6, notes: "NGC 7678 Pretty faint, pretty small, not much brighter in the middle at 100X. It is surrounded by three stars."
= Arp 28
POSS: m14 * @ 30" pa250 at tip of spiral arm, barely discernable on O print but better on E print. gx in pa40+/-5. triangle is 2'.5x1'.2, pointing S, m10,11,11. E side of triangle is in pa28, *s 2'.36 sep. 15cm sizes implied: 2'.4x1'.6 (halo), 1'.2x0'.25 (core).
15cm - mod f oval diffuse glow in a triangle of m11-11.5 *s, easy @ 80x. 140x: fat oval seems elong parallel to ESE-facing side of triangle (i.e. pa20), at least E flank of gx is this way. diffuse, mod broad concen to velong narrow core that seems brtst off-center to N side of halo. this core mottled w/sm spots. halo goes sl beyond * S and does not reach NErn *: length ~sep of these two *s in 3:2 ratio. core half this length in 5:1 ratio. BS, 6Sep1989, Anderson Mesa.
25cm - fairly losfcbr. inside a tight triangle of m10.5 *s. pa30?, 1'.5x1'. sm sl brtr core. on W is threshold *. triangle * S seems to be nrly touching obj.
30cm - *, poss a gx. 50" extent. *ar nuc? 5' N of a long triangle pointing N.
- f, found w/in triangle of m11 *s. elong confusing because of triangle, perhaps pa40. not concen, gran twd center.
The Messier objects
The Bennett objects
The Caldwell list
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