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NGC 5523
NGC 5523, LEDA 50895, MCG+04-34-008, UGC 9119, III 134, h 1762, GC 3818
Type: galaxy, Sc
Mag: B=13.4, V=?
Size: 4.168′ x 1.479′
PA: 99°
Historical observations
William Herschel (c.1784)
Synonyms: H III-134
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "vF, pL, E, lying along the parallel of the declination, resolvable."
Published comments
Burnham's Celestial Handbook
Burnham calls it a 12.8 mag spiral galaxy in Bootes, faint, pretty large (5.0'x0.8'), much elongated, nearly edge-on.
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads EL,BM,MINC,DIFPERIPH PCHY COMPLEX PERIPH STR.
Modern observations
Steve Coe
Steve Coe, using a 13" f/5.6, notes: "Faint, pretty large, much elongated (3 X 1) in PA 90 and brighter in the middle at 100X."
Brian Skiff
RC3: B=12.6/14.4
POSS: pa93. m10 * 2'.5 NW. three well sep m14 *s on E, but not in arc as
obs'd (15cm 1988 obs).
UGC: pa99.
NGC: pa90.
15cm - not vis.
- mod f spindle vis @ 80x. 140x: pa85, 3'.5x1', pointy tips. m10 * 1'.2 NW.
mod even concen to oval 45"x20" core and occas vis f sub*ar nuc or circ
pip 10" across. neb patch to E off tip must be arc of threshold *s with
another m13.5 * nrby. BS, 20May1988, Anderson Mesa.
- pretty f @ 80x 2'.5 SE of m10 *. losfcbr. 140x: 3'x0'.6 in pa95 w/wk
broad concen to wk oval 30"x20" core. occas suspect dk cut immed E of
core. def longer than sep to m10 * NW. BS, 7Jun1991, Anderson Mesa.
25cm - f and diffuse.
- fairly f in pa75. round core, inconsp. skinny triangles at each end of
core, each 1.5 times as long as core. size difficult to estimate due to
losfcbr.
30cm - pretty f, vlosfcbr. sl broad concen w/indef edges. 1'.5 diam, round with
occas glimpses to 2'.5x1'.5 in pa E-W. CBL, Roof.
Contemporary observations
Magda Streicher
(no date)
Alldays (22.50S, 20.12E, 770m).
12-inch f/10 SCT (218x, 346x)
Very faint but I can see it is elongated from E to W 3-4' in size. Very hazy with a low surface brightness, slightly brighten to a not so round core. Two brighter stars West.
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Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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