Asteroid 2753, Duncan, was discovered February 18, 1966 at the Goethe Link Observatory at Brooklyn, Indiana. The observatory takes the credit for its discovery on account of the large number of people involved. Asteroid Duncan has a period of 4 years, 241 days and is 17.93 kilometers in diameter.
Duncan was named after distinguished astronomer and Indiana University alumnus John Charles Duncan (1882-1967), who taught astronomy at Harvard, Radcliffe, Wellesley, and the University of Arizona and wrote a popular astronomy textbook first published in 1916.
John Charles Duncan
The astrological meaning of Duncan seems to be what its name might suggest ("dunkin'"): punishment, trouble, to dunk or dip.