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- W1966753663 abstract "The Whittier College Observatory is located on the outskirts of Whittier, California, fifteen miles southeast of Los Angeles, at an elevation of approximately 500 feet. The main equipment consists of an 18-inch reflecting telescope, and a photoelectric photometer at the Newtonian focus composed of the following parts : 1. An RCA 1P21 photomultiplier tube and optical mounting 2. A direct-current, battery-operated amplifier, built to specifications outlined by Hall and Jewett1 3. A microammeter calibrated to one-fourth of 1 percent ac-" @default.
- W1966753663 created "2016-06-24" @default.
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- W1966753663 date "1953-02-01" @default.
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- W1966753663 title "Photoelectric Observations of HD 199140" @default.
- W1966753663 doi "https://doi.org/10.1086/126528" @default.
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