Herbert Howe discovered IC 2437 = Ho I-13 on 23 Feb 1898 and recorded "F, vS, R, 10' s of NGC 2754, 2757 and 2758." His micrometric position is accurate. It's odd that Muller viewed NGC 2754 and 2758 at the Leander-McCormick Observatory but missed this brighter galaxy about 10' north.
400/500mm - 17.5" (2/8/97): brightest of three galaxies in field including NGC 2754 and NGC 2758 about 10' S. Fairly faint, fairly small, elongated 3:2 NNW-SSE, 40"x25". Weak even concentration to a brighter core and faint stellar nucleus. Forms the north vertex of a triangle with two mag 12.5 stars 1.0' W and S.
17.5" (3/25/95): faint, fairly small, elongated 3:2 NW-SE, slightly brighter core. Forms the vertex of an isosceles right triangle with two mag 12.5 stars 1.0' W and 0.9' S of center. A line of three mag 9.5 stars follows in the field including SAO 154906 and 154914. In a trio with NGC 2758 9.7' N and NGC 2754 8.9' NW.
Notes by Steve Gottlieb