Marcel J. Aucremanne, 89, NASA’s study manager for the Large Space Telescope, died Feb. 16 at Shady Grove Adventist Hospital after suffering a heart attack at his home in Rockville.

His daughter Jeanne Washburn confirmed his death.

Mr. Aucremanne joined NASA in 1959 and retired in 1980. His work included spacecraft telemetry systems, and geophysics and astronomy programs. The Large Space Telescope on which he worked became the Hubble Space Telescope.

After his retirement, he was chief of the forecast analysis section of Bendix Field Engineering until 1986.

Marcel John Aucremanne was born in Clarksburg, W.Va. He received a bachelor’s degree in electrical engineering from the University of Notre Dame in 1944, served in the Navy during World War II and received a master’s degree in electrical engineering, also from Notre Dame, in 1948.

Mr. Aucremanne worked at Sylvania Electric Products in New York before moving to the Washington area and joining the Naval Ordnance Laboratory in 1951.

His memberships included St. Mary’s Catholic Church in Rockville, where he was an usher and member of the Holy Name Society. He also held leadership positions with the Knights of Columbus.

His wife of 63 years, Marcelline Coyne Aucremanne, died in 2008.

Survivors include three children, Jeanne Washburn of University Park, Marcella Hickey of Gaithersburg and Marie T. Valentine of Dublin, Ohio; two brothers, Albert C. Aucremanne of Rockville and Joseph F. Aucremanne of Clarksburg; seven grandchildren; and 10-great grandchildren.

— Bart Barnes