William Herschel discovered NGC 6824 = H II-878 on 16 Sep 1792 (sweep 1028) and logged "pB, iF, bM, has 2 stars in it." CH's reduction is 5' south of UGC 11470, but his description fits. A change in the PD cord was noted at the end of the short sweep.

400/500mm - 17.5" (6/8/91): moderately bright and large, 1.5'x1.1', elongated 4:3 SW-NE, bright core with a substellar nucleus, high surface brightness. A mag 13.5 star is just off the south edge 34" from the center and a pretty yellow/blue double (Stein 2452 = 9.0/11.1 at 15") is 3.5' N. Unusually bright for a galaxy in a Milky Way field.

600/800mm - 24" (9/16/17): I observed SN 2017glx (Type Ia-91T), discovered on 9/3/17 just 3" W and 2" N of center of NGC 6824. It was highly suspected at 375x, as the galaxy appeared to have a double nucleus with a superimposed "star" attached on the NW side of the core. It took 500x, though, to clearly confirm and distinguish from the nucleus. When the seeing steadied, the supernova appeared as a sharp stellar point, perhaps mag 14.5-14.8, superimposed at the NW edge of the small, but nonstellar nucleus.

Notes by Steve Gottlieb