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NGC 955 (1,745 of 18,816)

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NGC 955

NGC 955, LEDA 9549, MCG+00-07-027a, UGC 1986, II 278, h 229, GC 551

RA: 02h 30m 33.36s
Dec: −01° 06′ 30.7″

Con: Cetus
Ch: MSA:263, U2:220, SA:10

Ref: SIMBAD

(reference key)

Type: galaxy (in group), Sab

Mag: B=13, V=?

Size: 2.63′ x 0.776′
PA: 19°

Historical observations

William Herschel (c.1784)

Synonyms: H II-278

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

NGC/IC Dreyer (1888, 1895, 1908)

The NGC calls it "pretty bright, small, elongated and pretty suddenly brighter in the middle." In the Monthly Notices of the RAS, Vol 38, Winnecke draws attention to the remarkable circumstance that this nebula was invisible to Schonfeld in December 1861, and to Vogel in November 1865, while it was easily seen by d'Arrest, Schonfeld and Winnecke in 1856, 1863, 1868 and 1867. Possibly the brightness of this object is variable. In November 1887 it was fully of the second class."

Birr Castle/Lord Rosse

Observations with the 72-inch f/8.8 speculum telescope at Birr Castle noted "nothing particular."

Burnham, S.W. (1894)

Publ. Lick Obs., vol 2, 168-181. "Observations of Nebulae with the 36-inch Refractor of the Lick Observatory".

This nebula, which was discovered by Herschel I, has not been found at times by some observers, and variability has been suggested as an explanation. ... I found this (1891.747) in the proper place without difficulty. It is a long, narrow nebula, in a general way similar to NGC 607, which was examined a few minutes before. It has a bright central condensation, with nebulous wings on either side in the direction of 15-195 deg. A setting of the wires bave for the extreme length 75''. On the whole it is rahter a curious ojbect, and should be easily found and seen. It is probable that the failures to find it, mentioned above, were due to unfavourable atmopsheric conditions. This would fully explain the observations with the moderate apertures which were probably used.

Published comments

Helwan Obs. Bulletin No 9 (1912)

pB, pS, mE 20deg, spindle with nucleus.

Helwan Obs. Bulletin No 22 (1921)

pF, 2' long, mE 20deg; spindle with pB alm.stell.N. Near edge of plate. No sign of variation in this nebula. See Astrophys.J., 1920, june. See also HOB 9.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 13.5 mag galaxy. Their coded description reads ALMEON,SBM,DIFPERIPH.

Burnham's Celestial Handbook

Burnham calls it a 13.1 mag elliptical in Cetus, 2' x 0.5', "possibly an edgo-on S0, lens shape. Pretty bright, small, much elongated, suddenly brighter in the middle. 25' west from 75 Ceti."

Modern observations

Steve Coe

Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty large, elongated 3 X 1, much brighter middle."

Brian Skiff

POSS: no m10 * E. m11 * 2'.5 SE. gx lies 24'.5 WSW of 75 Ceti.

Lick: pa30.

UGC: pa19.

15cm - W of 75 Ceti. difficult object to see. 1'.5 diam.

- seen faintly as sm spot N of m12.5 *.

25cm - fairly hisfcbr. 1'x0'.3 in pa40. core vthin, has *ry texture. halo spindly. * nuc occas seen.

30cm - quite f amd sm. located 2'.5 W of m10 *. 1' diam w/mod brtr core and f nrly *ar nuc.

Contemporary observations

Auke Slotegraaf

1984 December 28

1984 December 28/29, 23:58-00:04. PRG, Stellenbosch

Very faint, can just be directly seen, averted vision is best. There is a small star to the north-east. Thin, elongated shape. Diffuse and difficult, no other detail, focusing critical.

No detail is visible through a 15.5-inch at 220x, except that it is diffuse and has an obvious thin, elongated shape. Look for a small star to the North-East of the galaxy.

Tom Bryant

2011 1 4 20:10:40

Observing site: Little Bennett Regional Park

Telescope: C-11

[2h 30m 36s, -1 7' 0"] Small, round, no pronounced nucleus. E or face on

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