Detroit Observatory Chronology: 1917-1960s

1852-1855 | 1856-1873 | 1874-1894 | 1896-1916 | 1917-1960s | 1961-present

1917 Course in navigation is introduced for the benifit of U.S. Naval Reserve units
Rudolph Brünnow dies at Bar Harbor, Maine
1922 37 1/2-inch reflecting telescope overhauled; driving clock improved
1923 Students' Observatory dismantled to make way for Couzens Hall
Publications of the Observatory of the University of Michigan series Vol. III, is published
1924 Two-prism spectrograph designed by Curtiss is constructed in the Observatory Shop
Hartman spectrocomparator is purchased
Power Plant construction on the Cat-Hole site encroaches on the Observatory with smoke and limited sight distance
Land near Portage Lake identified as possible relocation site
Hussey offers a popular extension course in astronomy in Detroit
Simpson Building to be constructed on Observatory land to the east
1925 Hussey and others attempt to observe a solar eclipse from a balloon near Geneva, New York, but clouds and wind prevent it; Rufus is stationed at Bad Axe, where it is also cloudy
January Lamont 27-inch refractor is completed
July Lamont refractor set up on Observatory lawn for testing prior to shipment to South Africa
1926 Ralph H. Curtiss becomes Acting Director
Harrington dies
August Lamont 27-inch refractor is shipped to South Africa
October During travel to Bloemfontain, South Africa, undertaken despite being ill with pleurisy, Hussey dies in London
November Richard A. Rossiter takes over in South Africa
1927 Ralph H. Curtiss becomes Director
Angell Hall Observatory opened for student use; two 20-foot Fecker domes house 10-inch Warner & Swasey refractor (1926) and 15-inch Fecker reflector (1929)
Hazel "Doc" Losh (Ph.D. '24) joins the Astronomy Department as a Research Assistant in Astrophysics
1928 Option secured on 200 acres of land near Portage Lake; availability of land presently occupied by the Observatory was offered to make the deal more attractive
Lamont-Hussey Observatory is dedicated
1929 Ralph H. Curtiss dies
W. Carl Rufus becomes Acting Director
Watson's claim that he discovered the planet Vulcan is finally dismissed
1930

Heber C. Curtis becomes Director
Howard sidereal clock and Hale spectrohelioscope purchased for Angell Hall Observatory
Moll microphotometer from Kipp and Zonen purchased for the Observatory
85 1/2-inch Pyrex mirror produced for a new telescope that was never completed; mirror placed in storage near Observatory
Asaph Hall dies
McMath-Hulbert Observatory opens at Lake Angeles

1931 Board of Regents officially changes the name of the Detroit Observatory to the inclusive "Observatories of the University of Michigan"
Curtis improves slow-motion guiding of the 37 1/2-inch reflecting telescope
1932 Curtis observes solar eclipse in Fryeburg, Maine
Publications of the Observatory of the University of Michigan Vol. IV, is published
1934 37 1/2-inch mirror is aluminized
1935

Publications of the Observatory of the University of Michigan Vol. V, is published

1937

Publications of the Observatory of the University of Michigan Vol. VI, is published

1939 Publications of the Observatory of the University of Michigan Vol. VII, is published
Harry Fitz dies
1941 W. Carl Rufus becomes Director
1942 Heber D. Curtis dies
1945 Alan D. Maxwell becomes Acting Director
Land purchased at Peach Mountain
1946 Leo Goldberg becomes Director
1954 Director's residence razed to make way for addition to Couzens Hall to the west
1960 Freeman D. Miller becomes Acting Director
1960s Observatory largely abandoned; students and others use it for unauthorized activities

The chronology is excerpted with the author's persmission from A Creation of His Own: Tappan's Detroit Observatory, by Patricia S. Whitesell, ©1998.