Lewis Swift discovered NGC 5828 = Sw. IX-28 on 24 Jun 1887 and recorded "eF; pS; R; between two stars." The discovery was communicated directly to Dreyer and referenced to list VI in the NGC, but it was not published until 1890 in his 9th list. Swift's position matches UGC 9658. RNGC lists the two components of the double system as NGC 5828A and 5828B, though NED references the companion as NGC 5828A.

400/500mm - 17.5" (6/18/93): fairly faint, fairly small, slightly elongated WSW-ENE, 0.8'x0.6'. Forms a double system with NGC 5828A = MCG +08-27-052 just off the south edge (40" S of center). A mag 14 star is 1.3' ENE. NGC 5828A appeared extremely faint and small, round, visible intermittently with averted vision.

600/800mm - 24" (6/13/15): fairly faint to moderately bright, fairly small, slightly elongated SW-NE, ~0.6'x0.45', slightly brighter core. Forms a close pair with NGC 5828A just 40" S of center. The companion appeared very faint and small, round, 8" diameter. Visible ~80-90% of the time with averted.

Notes by Steve Gottlieb