From the Rittenhouse Astronomical Society Archives A collection of images of the Rittenhouse Astronomical Society, from 1891 - 2021. Augustus Depuy, two others, and Charles H. Brightly, Philadelphia, PA. 1891. Mr. D. Robert Yarnall and his 10” reflector telescope in Chestnut Hill, PA. 1938. Dr. Milt Friedman, Astronomy Fair, Franklin Hall. 1981 Ted Williams, Philadelphia, PA. 2019. View fullsize Dr. Milt Friedman (left) and Harrison Schmitt of Apollo 17 and one of the last astronauts to step foot on the Moon. View fullsize Dr. Milt Friedman | Astronomy Fair, Franklin Hall, 1981 View fullsize Derrick Pitts, Milt Friedman, and others. View fullsize [unknown] View fullsize Milt Friedman and Alexander Wolszczan, the first person to discover and extrasolar planet. View fullsize Derrick Pitts in Franklin Hall. View fullsize Colleagues in Franklin Hall. View fullsize Colleagues and guests in Franklin Hall. View fullsize Milt Friedman, Carolyn and Eugene Shoemaker. View fullsize Sally Ride, first American female astronaut in space. 1985. View fullsize David Rittenhouse's 250th Birthday. 1982. View fullsize Derrick Pitts, Chief Astronomer of the Franklin Institute. View fullsize Mr. and Ms. Barringer, Dr. Friedman. View fullsize Milt Freidman, Joy Crist, Val Gonzales. View fullsize Alan Daroff with his self-designed gear. View fullsize Alan Daroff solar observing with his self designed gear. View fullsize Milt Rosenthal (past officers and telescope builders of RAS). View fullsize Milt Rosenthal and the continual upgrade of his telescope. View fullsize RAS President Milton Friedman observes the transit of Venus, Derrick Pitts in background. 2004. View fullsize Derrick Pitts, interviewed about the transit of Venus at the Franklin Institute. 2004. View fullsize Carolyn and Eugene Shoemaker in the Bloom Observatory with RAS members. View fullsize Carolyn and Eugene Shoemaker in the Bloom Observatory. View fullsize Clyde Tombaugh receives the Rittenhouse Medal from RAS President Milton Friedman in Philadelphia. 1991. View fullsize Dr. Howard McClenahan, Secretary of The Franklin Institute and Director of the Museum, Samuel Fels, Dr. James Stokley, the Institute's Associate Director for Astronomy, admire the Zeiss Mark II planetarium instrument in the Fels Planetarium. 1933. View fullsize During his 14-year search for planets beyond Neptune, Clyde Tombaugh photographed 70% of the night sky and blinked 90,000 square degrees of star fields. Some plates had more than a million star images each. The search areas are plotted on his copy of Norton's Star Atlas. 1991. View fullsize Augustus Depuy, two others, and Charles H. Brightly, Philadelphia, PA. 1891. View fullsize Rev. Charles Bowden and his 4” Fitz Telescope at his home in Camden, NJ. 1889. View fullsize Sir Harold Spencer Jones, Astronomer Royal (center), receiving the Rittenhouse Medal from RAS President C.M. Billings (left) with S.W. Rolph, president of the Franklin Institute (right). 1955. View fullsize Dr. Fred Hoyle (right) receiving the Rittenhouse Medal from President James Conklin. 1960.