William Herschel discovered NGC 5448 = H II-691 = h1743 on 15 May 1787 (sweep 736) and recorded "pB, pL, E nearly in the parallel, mbM." His position is accurate. JH called this galaxy "pB; L; vmE; psmbM; 4' l, 20" br; a ray with a nucleus." The RA in the RNGC is 1.0 minute too large.

200/250mm - 8" (4/24/82): faint, very elongated E-W.

400/500mm - 17.5" (5/22/93): moderately bright, moderately large, very elongated 3:1 WNW-ESE, 2.4'x0.8', very small brighter core, stellar nucleus. A mag 12 star lies 4.4' S of center. Brightest in a group (LGG 372) including NGC 5377, 5425, 5448, 5480, 5481, 5500 and 5520.

Notes by Steve Gottlieb