John Herschel discovered NGC 7125 = h3887, along with NGC 7126, on 22 Jul 1835 and recorded "eF; pL; R; 60"; the preceding of 2."

600/800mm - 30" (10/9/15 - OzSky): at 303x; moderately bright, large, slightly elongated ~E-W, ~2'x1.5', broad concentration with a slightly brighter middle. Two spiral arms are visible in the halo, though not detached from the general glow. One arm curves along the south side of the halo towards the west and another curves to the east on the north side. A mag 14-14.5 star is superimposed on the north edge [45" from center] and several mag 13-14 stars surround the galaxy off the entire southern half. Forms a very nice pair with NGC 7126 6' N.

Notes by Steve Gottlieb