Zenith sky brightness and airglow emissions during the equatorial solar eclipse of 30 June 1973.


Experimental and calibration procedures used for photometric zenith measurements at Loiyengalani (2.75 degrees N, 36.6 degrees E) during the total solar eclipse of 30 June 1973 are described briefly. Comparison was made between sky brightness at wavelengths in the 3914-6300-A range during totality and morning twilight at Dar es Salaam. The twilight 3914… (More)
DOI: 10.1364/AO.20.000778


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