sponsored by psychohistorian.org
Type: galaxy, Sab
Mag: B=12.1, V=?
Size: 3.235′ x 1.584′
Synonyms: H II-211
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "F, pL, lE, bM, north of 2 stars."
Observations with the 72-inch f/8.8 speculum telescope at Birr Castle noted "Oct 12, 1855. Sketched; resolvable."
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads EL,BM,DIFHALO,DKLNSS.
This galaxy appears on page 23 of "The Hubble Atlas of Galaxies" by Allan Sandage (1961, Washington, DC).
Photo Index by Jim Lucyk: Burnhams V1 p251, Hubble Atl.of Gal. (Sandage 1961) p23.
Burnham notes that this 12.3 mag peculiar spiral galaxy in Aries (2.7'x1') is pretty bright, considerably large, slightly elongated and gradually brighter in the middle. It has a coarse spiral pattern with irregular dust lanes.
Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.3M; 2.7'x 1' extent; faint E-W-oriented ellipse with brighter center; appears somewhat mottled with larger aperture; photos at Burnhams Celestial Handbook-I-251 and HAG-23."
Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty small, much brighter in the middle, elongated 3 X 1 in PA 145 at 165X. This galaxy really grows with averted vision."
POSS: pa155. pair 1'.5 SE: 9.5,10.5; 40"; 120. third * (m13) 1'.5 S of gx, 40" from m10.5 *.
15cm - nice and easy. 1'.5x0'.75. broad brtr nuc region. distinct edges.
- another Aries gx nr a br *, this time a wide pair vis @ 30x along w/gx. 80x shows third * nrly in line w/two brtr, who are in pa120. 140x: gx in pa155 (wedge of 45 deg wrt to pair). length about as long or sl longer than length of all three *s. mod even concen but a few vf *ings occas. sm inconsp nrly circ core. sub*ar nuc even less consp. vf (m14.5?) pair 5' N looks neb occas, as though a comp gx. BS, 7Nov1988, Anderson Mesa.
25cm - fairly br. immed upon a wide pair on the SW. elong SE-NW, 1'.5x0'.75. brtst part off-center to NW. fntr extns to SE. core elong and vmuch brtr.
30cm - nice. elong pa165, 2'.2x1'. pretty br, good concen but not nuc. 220x shows broad even light w/lg core. occas f *ar nuc off-center to E. inner parts of core are granular. three *s SW & S of gx lined up in pa120 ~1' apart, decreasing in mag going to SE.
16-inch f/10 SCT (290x)
Oval spiral in a NW-SE direction, with a bright core. Very soft and hazy around the edges. Few stars on the SW extreme edge, brightest 9.5magnitude. I estimate the size about 3'x1and a half'.
Observing site: Little Bennett Regional Park
[2h 34m 12s, 29° 19m 0s] A faint streak, just NE of a pair or stars. Burnham: Sc/pec
The Messier objects
The Bennett objects
The Caldwell list
DOCdb is still in beta-release.
Known issues, feature requests, and updates on bug fixes, are here:
Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!
DOCdb is a free online resource that exists to promote deep sky observing.
You could help by sharing your observations, writing an article, digitizing and proof-reading historical material, and more.
Everything on DOCdb.net is © 2004-2010 by Auke Slotegraaf, unless stated otherwise or if you can prove you have divine permission to use it. Before using material published here, please consult the Creative Commons Attribution-Non-Commercial-Share Alike 2.5 License. Some material on DOCdb is copyright the individual authors. If in doubt, don't reproduce. And that goes for having children, too. Please note that the recommended browser for DOCdb is Firefox 3.x. You may also get good results with K-Meleon. Good luck if you're using IE. A successful experience with other browsers, including Opera and Safari, may vary.