William Herschel discovered NGC 3692 = H II-152 on 15 Apr 1784 (sweep 194) and noted "F, mE, r." His position (CH's reduction) is 7' N of UGC 6474. Not observed by JH. Neither JH nor d'Arrest made an observation. The GC position (revised by Tempel) is also too far north. The NGC position is 9 tsec west and 2' south of UGC 6474. Rudolph Spitaler measured an accurate micrometric position in 1892 using the 27" refractor at Vienna.

400/500mm - 17.5" (2/28/87): fairly faint, thin edge-on 5:1 E-W, 2.0'x0.4', very small bright core. A mag 13 star is off the NE edge 2.3' from the center. NGC 3705 lies 26' ESE.

Notes by Steve Gottlieb