Albert Marth discovered NGC 6921 = m 414 on 6 Sep 1863 and noted "F, S, E." His position is 1.4' southeast of UGC 11570 and the description applies. According to Wolfgang Steinicke, Auguste Voigt independently rediscovered this galaxy in 1865 with the 31-inch silvered-glass reflector at the Marseilles Observatory.

400/500mm - 17.5" (8/5/91): fairly faint, very small, very elongated 3:1 NW-SE, faint stellar nucleus. One or two very faint stars are at the edges. Unusual as located in the midst of a very rich Milky Way field over unresolved background glow. Located only 7.6° from the galactic equator and less than 3° SW of open cluster NGC 6940!

Notes by Steve Gottlieb