William Herschel discovered NGC 4671 = H II-774 = h1423 on 20 Mar 1789 (sweep 913) and logged "pB, S, mbM, iR." His position matches PGC 43029. JH made the single observation "F; R; psbM."

400/500mm - 18" (4/9/05): fairly faint, fairly small, round, 0.8' diameter. Gradually increases to a very small brighter core, symmetrical appearance.

Notes by Steve Gottlieb