Absolute Photometry of the Light of the Night Sky. The Zenith Intensity of Haleakala (Latitude n 20.7 Degrees) and at Fritz Peak (Latitude n 39.9 Degrees)

摘要

A study is presented of one year of systematic zenith observations made with similar photometers at two observing stations: Haleakala (latitude N 20.7 degrees) and Fritz Peak (latitude N 39.9 degrees). It is shown that, for an effective wavelength of 5300 A, there is a change of intensity with sidereal time (and therefore right ascension) due to three components: (1) integrated starlight, (2) zodiacal light, and (3) airglow continuum. Quantitative separation of the components is made. A critical comparison is made with some earlier investigations with particular reference to the problem of the galactic light. (Author)