John Herschel discovered NGC 6328 = h3674 on 2 May 1835 and recorded "vF; R; gbM; 15". He logged it again on 20 Jun 1835 and noted, "vF; vS; lE; lbM; 15" l, 12" br." His position matches ESO 102-003 = PGC 60198, nevertheless RNGC classifies this number as a non-existent cluster. The RNGC was probably misled by DeLisle Stewart's comment (based on a Harvard plate) in the IC 2 Notes: "eF pair of stars only, one star hazy". Because of the RNGC classification, Brent Archinal includes this object in his monograph on the RNGC nonexistent clusters.

300/350mm - 14" (4/5/16 - Coonabarabran, 178x): fairly faint, fairly small oval NNW-SSE, 0.8'x0.5', broad weak concentration to a slightly brighter core. Mag 8.9 HD 156534 lies 7' NW and a mag 12 star is 1.3' NNW. The latter has a 14.5 companion at 11" separation. Situated within a rich Ara star field with numerous mag 12-14 stars.

Notes by Steve Gottlieb