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NGC 3169 (6,764 of 18,816)

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NGC 3169

NGC 3169, LEDA 29855, MCG+01-26-026, UGC 5525, I 4, h 685, GC 2041

RA: 10h 14m 14.82s
Dec: +03° 27′ 59.1″

Con: Sextans
Ch: MSA:756, U2:234, SA:13

Ref: SIMBAD

(reference key)

Type: galaxy (AGN LINER-type), Sb

Mag: B=11.9, V=?

Size: 4.677′ x 2.511′
PA: 45°

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Remarks

This galaxy pairs with NGC 3166, lying north of Alpha Sex. It is of 11th magnitude and about 4' long.

Historical observations

William Herschel (c.1784)

Synonyms: H I-004

Discovered in December 1783 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cB pL Resembling a telescopic comet. mbM."

Published comments

Supernovae

A supernova erupted in this galaxy in 1984 (15.0v)

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads S,EL,MBM,DKLNS,NARMS DST ARM S OF DSK.

Modern observations

Tom Lorenzin

Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.5M; 4' x 1.5' extent; stellar nucleus; SP GAL N3166 is W-most of pair with SP GAL N3169 (11.4M; 4' x 2' extent); 9' separation between galaxies; EL GAL N3156 (12.5M; 2' x 1' extent) 45' to SW of N3166; has stellar core and 8M star nearby to E; all are !good supernova prospects!."

Steve Coe

Steve Coe, observing with a 13" f/5.6, notes: "Pretty bright, pretty large, elongated 1.5 X 1 in PA 45 and much brighter in the middle at 100X."

Walter Scott Houston

Houston writes of a "pair of galaxies [NGC 3166 & NGC 3169] separated by only 8'. Both fit within the same field of a high-power eyepiece. At magnitude 10.6 and 5' long, NGC 3166 is easy. Its companion to the west, NGC 3169, is about the same size and brightness..."

Within range of a 6-inch, about 11th magnitude. Close to the west, a third fainter member of the group can be seen in a good 12-inch.

Contemporary observations

Tom Bryant

2009-04-17 22:30:00

Observing site: Pinnacles overlook

Telescope: C-11

[10h 14m 12s, 3 28m 0s] Looks like an Sa (Burnham: Sb). Near 3166.

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