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NGC 5533 (12,226 of 18,816)

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NGC 5533

NGC 5533, LEDA 50973, MCG+06-31-089, UGC 9133, II 418, h 1766, GC 3826

RA: 14h 16m 7.74s
Dec: +35° 20′ 37″

Con: Bo÷tes
Ch: MSA:627, U2:110, SA:7

Ref: SIMBAD

(reference key)

Type: galaxy, Sb

Mag: B=13, V=?

Size: 3.019′ x 1.737′
PA: 30°

Historical observations

William Herschel (c.1784)

Synonyms: H II-418

Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, iR, mbM."

NGC/IC Dreyer (1888, 1895, 1908)

The NGC description reads: "pretty bright, round, very suddenly much brighter in the middle, two or three stars involved".

Published comments

Burnham's Celestial Handbook

Burnham calls it a 12.6 mag spiral galaxy measuring 1.8' x 0.8' which is pretty bright, elongated and much brighter in the middle.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads E,SLEL,BM,DKLN SUSP.

Modern observations

Walter Scott Houston

It was called "comfortably bright" by Houston as seen with a 4-inch refractor.

Tom Lorenzin

Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.6M; 2' diameter; soft and small with much brighter center, but no stellar core."

Steve Coe

Steve Coe, using a 13" f/5.6, notes: "Pretty faint, pretty small, little elongated 1.5 X 1 in PA 30 and very suddenly much brighter in the middle at 135X. There is a 13th mag star to the south of the nucleus."

Brian Skiff

RC3: V=11.8/13.6

POSS: pa20.

UGC: pa30.

15cm - not vis.

- mod f @ 80x. 140x: oval elong NE-SW, 1'.2x0'.9, or length ~sep of two m13

*s NNE, 3:2 ratio. f halo w/broad concen, sm circ core 20" across w/sharp

concen to sub*ar nuc. threshold * SSE? BS, 7Jun1991, Anderson Mesa.

25cm - found @ 75x. f and diffuse, looks elong in pa0, 1' diam. broad even glow

that gradually brightens twd center.

30cm - mod f. elong in pa25 @ 220x. 1'.5x0'.8 w/mottling in core and halo. 140x:

nuc is *ar, not as much @ 220x.

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