John Herschel discovered NGC 7126 = h3889, along with NGC 7125, on 22 Jul 1835 and recorded "pB; pL; lE; gbM; 40" l, 35" br; the following of 2." His position is accurate.

600/800mm - 30" (10/9/15 - OzSky): at 303x; fairly bright, moderately large, elongated 5:3 WSW-ENE, ~1.5'x0.9', faint outer halo, central region gradually brightens. A mag 13.5 star is 1.5' SE and a mag 16 star is very close to the northwest edge, 0.7' from center. Forms a very nice pair with NGC 7125 6' due south.

Notes by Steve Gottlieb