Harold Lester Johnson (April 17, 1921 – April 2, 1980) was an American astronomer. April 17 is the 107th day of the year in the Gregorian calendar (108th in leap years). ... 1921 (MCMXXI) was a common year starting on Saturday (see link for calendar). ... 2 April is the 92nd day of the year (93rd in leap years) in the Gregorian calendar, with 273 days remaining. ... 1980 (MCMLXXX) was a leap year starting on Tuesday. ... An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ...
Johnson was awarded the Helen B. Warner Prize by the American Astronomical Society in 1956. The Helen B. Warner Prize for Astronomy is awarded annually by the American Astronomical Society for a significant contribution to observational or theoretical astronomy. ... The American Astronomical Society (AAS) is a US society of professional astronomers and other interested individuals, headquartered in Washington, DC. The main aim of the AAS is provide a political voice for its members and organise their lobbying. ... 1956 (MCMLVI) was a leap year starting on Sunday of the Gregorian calendar. ...
HAROLDJOHNSON, ONE OF the most productive and influential observational astrophysicists of this century, was born in Denver, Colorado, on April 17, 1921, the son of Averill C. and Marie (Sallach) Johnson.
Johnson developed convenient forms to facilitate (in those precomputer days) the reduction of photoelectric observations, designed an ingenious analog-to-digital device to measure the star and sky deflections on chart records of the photo-current, and defined the rigorous procedures to be followed to obtain the highest precision in this type of observation.
Johnson's years at Texas were very productive in the sense that he developed and used much new equipment at McDonald Observatory, but frustrating because he failed to receive from the university administration whole-hearted support for the kind of research and development he wanted to give to the department and, especially, the observatory.
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