1950 SD. Discovered 1950 Sept. 16 by S. Arend at Uccle.

Named in honor of Charles Hugh Smiley {1903–1977}, interested mainly in orbit computations by Leuschner’s method, director of the Ladd Observatory and professor at Brown University, Providence, R.I. (M 3931)

Smiley not only worked on the field of minor planet dynamics. He led 14 solar eclipse expeditions, in Peru, Canada, Brazil, Thailand, Pakistan, and the U.S.A., and did much work on the study of the Mayan calendar. Obituaries are published in J.R. Astron. Soc. Canada, Vol. 72, p. 46–47 (1978); Q.J.R. Astron. Soc., Vol. 19, p. 510–511 (1978).