William Liller (April 1, 1927, Philadelphia – February 28, 2021) was an American astronomer, known for his research on "planetary nebulae, comets, asteroids, magnetic activity in cool stars, the optical identification of X-ray sources, and astro-archaeology.
"[2] He matriculated in 1944 at Harvard College, where he graduated in 1949 with a bachelor's degree in astronomy, after an 11-month interruption for service in the U.S. Navy from July 1945 to June 1946.
[7] In 1981 Liller resigned from Harvard University and became the associate director of the Instituto Isaac Newton[2] with main office in the eastern outskirts of Santiago Chile.
[8] In 1986 NASA funded Liller's three-month stay on Easter Island, where he set up a small observatory to observe Halley's Comet.
[9] He and his Chilean, third wife[2] lived in Reñaca, Chile in a villa on high cliffs overlooking the Pacific Ocean.