Named in honor of Robert Farquhar, who has been active in the design of spacecraft and missions for low-cost solar system exploration. His work has been carried out at the Goddard Space Flight Center and NASA Headquarters (1970–1990) and more recently at Johns Hopkins University Applied Physics Laboratory. Of particular interest are his efforts to utilize international cooperation and innovative trajectory design to plan missions to comets and minor planets. He was instrumental in designing and bringing to fruition the retargeting of the third International Sun Earth Explorer spacecraft to fly through the tail of periodic comet Giacobini-Zinner {see planets  (1756) and  (4615)} in September 1985 thus allowing the first in situ measurements of cometary phenomena. (M 21134) _ _.