John Herschel discovered NGC 6739 = h3775 on 7 Aug 1834 and recorded "pF; vS; E; psbM; 12" l; has 3 stars preceding." His position (also measured the next night) is accurate. The RC2 position of 19 08 03 -61 23 40 (2000) is incorrect.

600/800mm - 30" (10/12/15 - OzSky): at 394x; bright, moderately large oval, elongated 5:2 ~N-S, 1.5'x0.4'. Contains a relatively large very bright core! The 15' field contains several mag 13 and fainter stars, but no brighter stars.

Notes by Steve Gottlieb