HCG 99 NGC 7550
Peg
☀12.2mag
Ø 2.6' / 78''

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William Herschel discovered NGC 7711 = H II-244 = h2256 on 14 Oct 1784 (sweep 289) and logged "F, S, lE. 240 showed it better, resolvable." On 16 Oct 1784 (sweep 294), he noted "F, stellar but not vS." This is one of the first objects John Herschel recorded. On 2 Nov 1823 (sweep 1), he recorded "vF; R; gmbM; 20"; r; like a blotted star."

400/500mm - 17.5" (10/28/89): fairly faint, fairly small, elongated 5:2 E-W, sharp bright core, fainter extensions.

Notes by Steve Gottlieb