Delisle Stewart discovered IC 1898 = D.S. 170 on an plate taken at Harvard's Arequipa station in 1899.
600/800mm - 24" (12/6/18): at 124x and 260x; faint, fairly large, very thin edge-on,~1.5'x0.2', low surface brightness (partly due to its low elevation)
Notes by Steve Gottlieb