Named in honour of John Stanley Plaskett (b. 1865 in Hickson, Ontario, d. 1941), director of the Dominion Astrophysical Observatory in Victoria from its founding in 1917 to 1935; and of his son, Harry Hemley Plaskett (b. 1893, d. 1980), Savilian professor of astronomy at the University of Oxford and director of the Oxford Observatory from 1932 to 1960. Known for his work on the radial velocities of O- and B-type stars that provided observational confirmation of the theory of galactic rotation, J. S.

Named in honour of Peter MacKenzie Millman (b. 1906, d. 1990), former head of Upper Atmosphere Research and, after his formal retirement, a guest scientist at the Herzberg Institute of Astrophysics of the National Research Council of Canada. Well known for his research on meteors and for his interest in meteorites, comets and planets, he has served as president of the Royal Astronomical Society of Canada and of the Meteoritical Society, as well as president of Commission 22 and chairman of the Working Group on Planetary System Nomenclature of the IAU.

Discovered by C. J. van Houten and I. van Houten-Groeneveld. Named in honour of Anne B. Underhill, a well-known astrophysicist and an expert in the field of the structure of early-type stars.

Dr. Underhill was nominated as an honorary member of the Royal Astronomical Society of Canada on 1996-03-23.

Orbit type: Main Belt Asteroid 

JRASC

This minor planet, the first to be found at a Canadian Observatory, is named in honour of University of Toronto, during whose sesquicentennial celebration it was discovered, to acknowledge the central role played by the university in the development of astronomy in Canada. This planet was detected at the David Dunlap Observatory on plates taken by Sidney van den Bergh at the Tautenberg Observatory, East Germany.

Orbit type: Main Belt Asteroid 

Reference: MPC 4645

Named in honour of the American astronomer Simon Newcomb (b. 1835 in Wallace, Nova Scotia, d. 1909), professor of astronomy and director of the U.S. Nautical Almanac Office. Newcomb worked on cometary and planetary orbits and on the theory of the orbit of the Earth. He measured the velocity of light and determined the astronomical unit anew. Newcomb in also honoured by craters on the Moon and on Mars. Prof. Newcomb was elected an Honorary Member of the Astronomical and Physical Society of Toronto on 1891-11-03.

Named in honour of the American astronomer James Craig Watson (b. 1838 in Fingal, Ontario, d. 1880), director of the Ann Arbor Observatory, Michigan, who detected some comets and 22 minor planets. He left an endowment with the National Academy for the care of the "Watson" asteroids. Watson is also honoured by a lunar crater.

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