Francis Leavenworth discovered NGC 7170 = LM 1-245 in 1886 and recorded "mag 13.0; pS; iR; bMN; double star p 36 seconds." His rough position (nearest min of RA) is 40 seconds of RA west of PGC 67848. The double star he mentions precedes, though by only 20 seconds of time. Ormond Stone measured an accurate micrometric offset (in the "Southern Nebulae" paper) but the position given in the IC 1 is notes is 1.0 tmin too far east! Bigourdan also corrected the RA on 27 Oct 1888 and noted the NGC RA was off by 40 seconds (repeated in the IC 2 Notes).

400/500mm - 17.5" (8/8/91): faint, small, elongated 3:2 NNW-SSE, broad concentration. A nice double star is 5' W consisting of a mag 12/13 duo at 9" separation.

Notes by Steve Gottlieb