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Type: galaxy, Sb
Mag: B=12, V=?
Size: 3.311′ x 1.258′
Synonyms: H II-282
Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, cL, lE, mbM."
Burnham calls this a 12.6 mag spiral in Cetus, 2.7' x 0.8', "pretty bright, pretty large, slightly elongated."
(Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads EL,DIF,SBM,DKLNS DIF COM 1'SP.
G. de Vaucouleurs ("Galaxies and the Universe", Chapter 14 - Nearby Groups of Galaxies) notes that the Cetus II Cloud includes the NGC 584 & NGC 681 Groups. The five brightest members of the Cetus II Cloud are NGC 720, NGC 584, NGC 779, NGC 596 & NGC 615.
de Vaucouleurs, G. (1975) Nearby groups of galaxies. In: Kuiper, G. (ed) Stars and Stellar Systems. Volume 9: Galaxies and the Universe. Chapter 14, p557.
Includes NGC 584 and NGC 681 groups.
Brightest members: NGC 720 ( B(0) = 11.47), NGC 584 ( B(0) = 11.71), NGC 779 ( B(0) = 12.20), NGC 596 ( B(0) = 12.31), NGC 615 ( B(0) = 12.51).
This galaxy appears on page 22 of "The Hubble Atlas of Galaxies" by Allan Sandage (1961, Washington, DC).
"Observations of Nebulae with the 36-inch Refractor of the Lick Observatory", p 168.
See NGC 607.
pB, pS, mE 20deg, spindle or spiral with B almost stellar nucleus - in corner of pate.
by Jim Lucyk: Burnhams V1 p651, Hubble Atl.of Gal. (Sandage 1961) p22.
NGC 6164-6165, Sky&Tel. 9/86 p218, 219, Sky&Tel. 10/69 p227, Astronomy mag. 4/85 (cover), Universe Guide to Stars & Planets (Ridpath & Tirion) p184.
Notes that this is one of a line of three galaxies southeast of NGC 584. These three are NGC 596, NGC 615 & NGC 636. NGC 615 measures 2.7' x 0.8' and is about v-mag 11.5
described as "very elusive, small, circular and evenly bright. Best with averted visiion applied. Situated near a bright field star. 6-inch, 48x."
Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12M; 4'x 1.5' extent; soft, ellipse-shaped, unresolved, many-armed spiral; see photo at HAG-22; EL GAL N636 (12.5M; 1.5'x 1' extent) is 1 degree to ESE; EL GAL N596 is 35' to NW just W of 6M star."
Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty small, somewhat elongated, much brighter middle."
Lick: m9 * 6' WSW. gx in pa150.
15cm - mod br, circ. *ar nuc w/o core, but nice halo.
25cm - lies 5' ENE of m9 *. seems elong either in pa0 or pa150, seeming to alternate btwn. core elong too, perhaps w/gap to S side. halo 1'.5x0'.5.
30cm - easy 6' ENE of m8.5 *. mod concen w/sub*ar nuc. halo 2'x1' in pa175, not as concen as N596. *ar nuc seems to be N of center.
Observing site: Little Bennett Regional Park
[1h 35m 6s, -7° 20' 0"] A bright galaxy, 1.5x3', elongated NW to SE. Bright nucleus. Confirmed, WikiSky. B: Sb.
The Messier objects
The Bennett objects
The Caldwell list
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