William Herschel discovered NGC 6235 = H II-584 = h3653 on 26 May 1786 (sweep 566) and recorded "pB, cL, gbM, easily resolvable. No doubt that it consists of stars." His position is accurate. John Herschel made the single observation "pretty compressed; S; 2'; rather triangular than R; mbM; resolved into stars 14...16m."

400/500mm - 17.5" (6/8/91): fairly bright, small, 3' diameter, mottled. A few stars are resolved at the edges of the halo including a fairly prominent mag 14 star at the east edge of the halo and another mag 14 star at the west edge of the core. The remaining resolved stars are mag 15 or fainter. The core is elongated N-S. The globular has an irregular scraggly halo due to unresolved star lanes. Located within a triangle of three mag 12-13 stars.

600/800mm - 24" (8/29/19): unusual observation of NGC 6235 with Jupiter just 8' of the globular and Callisto superimposed on the outer south portion of the halo of the globular! Using 260x, with Jupiter off the edge of the field and Callisto resolved as an obvious 1.3" disc, the core of NGC 6235 was seen as a small, hazy patch and the halo was occasionally seen as a low surface brightness glow.

Notes by Steve Gottlieb