Robert S. McMillan (astronomer)

Robert S. Mcmillan
McMillan in January 2009
NationalityAmerican
Alma mater
Known for
Scientific career
Fields
InstitutionsLunar and Planetary Laboratory
University of Arizona
Thesis New Constraints on the Composition of Interstellar Grains from Observations of Extinction and Polarization  (1977)

Robert Scott McMillan is an American astronomer and retired research professor affiliated with the Lunar and Planetary Laboratory (LPL) at the University of Arizona.

He is known for his work in studying minor planets, stellar radial velocities, and astronomical instrumentation.

McMillan served as the Principal Investigator of the Spacewatch Project, a program dedicated to surveying and tracking small bodies in the solar system. He has made various discoveries, including notably 20000 Varuna. On October 19, 2008, he discovered a short-periodic comet 208P/McMillan.