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Type: galaxy, Sab
Mag: B=11, V=?
Size: 3.63′ x 1.174′
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Synonyms: H II-549
Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, vL, iF, lbM."
Observed by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "B, L, mE in meridian, gpmbM, 3' long."
pB, 3'x1', mE 5deg, central part E 15deg, stellar nucleus, probably spiral.
3.5'x1', E 0deg; spiral with sharp stell. N.; pF central portion like a narrow 'S' E 25deg; outer portion vF, showing a similar structure. See HOB 15.
Notes that this is a 12.0 mag galaxy. Their coded description reads EL,DIF,BM.
Steve Coe, observing with a 13" f/5.6, notes: "pretty bright, pretty large, much elongated 3X1 with an elongated nucleus at 200X. There is an 11th magnitude star at the southern tip."
The Messier objects
The Bennett objects
The Caldwell list
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