Lewis Swift discovered NGC 351 = Sw. III-3 (along with NGC 353 = Sw. III-4) on 10 Nov 1885 with the 16" refractor at the Warner Observatory. His RA was 12 seconds too large. Bigourdan measured an accurate micrometric position on 25 Oct 1897 as well as Howe in 1897 using the 20" refractor at Chamberlin Observatory.

400/500mm - 17.5" (10/5/91): fairly faint, fairly small, elongated 3:2 NW-SE, broad concentration. Forms a pair with NGC 353 at 7' ESE.

Notes by Steve Gottlieb