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Type: galaxy (in group), Sab
Mag: B=13, V=?
Size: 2.63′ x 0.776′
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."
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."
Observations with the 72-inch f/8.8 speculum telescope at Birr Castle noted "nothing particular."
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.
pB, pS, mE 20deg, spindle with nucleus.
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.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.5 mag galaxy. Their coded description reads ALMEON,SBM,DIFPERIPH.
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."
Steve Coe, using a 13" f/5.6, notes: "Pretty bright, pretty large, elongated 3 X 1, much brighter middle."
POSS: no m10 * E. m11 * 2'.5 SE. gx lies 24'.5 WSW of 75 Ceti.
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.
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.
Observing site: Little Bennett Regional Park
[2h 30m 36s, -1° 7' 0"] Small, round, no pronounced nucleus. E or face on
The Messier objects
The Bennett objects
The Caldwell list
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