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- W2080555401 abstract "The 140-foot radio telescope will be a precision instrument that will be used for the measurement of accurate positions of small radio sources, for making accurate maps of larger sources, for the determination of the radiative fluxes of many sources at different frequencies, for the study of variable sources of several kinds, for the measurement of the refraction and scintillation of radio waves, etc. Experience with other instruments has demonstrated the need for a fairly large and exceptionally stable telescope that will remain in use and retain its characteristics over intervals of many years. In optical astronomy the most accurate measurements of stellar coordinates have been obtained through the use of large transit instruments that have remained essentially unchanged for several decades. It would be an exaggeration to suggest that the 140-foot telescope will do for radio astronomy what modern meridian circles are doing for optical astronomy, but it should perform considerably better than Ulug-Beg's or Tycho Brahe's large visual quadrants. It would also be unrealistic to expect the 140-foot telescope to compete in photometry with present-day photoelectric" @default.
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- W2080555401 date "1960-12-01" @default.
- W2080555401 modified "2023-10-14" @default.
- W2080555401 title "The 140-Foot Radio Telescope of the National Radio Astronomy Observatory" @default.
- W2080555401 doi "https://doi.org/10.1086/127575" @default.
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