Rocket observations of the far UV nightglow at Lyman α and shorter wavelengths

Abstract

Observations of the far UV nightglow have been made in 150 to 440, 150 to 800, 730 to 1080, and 1130 to 1500 A bands. Night sky radiations identified as 304, 1026, and 1216 A were observed. In addition, the 730- to 1080-A photometer observed an unidentified night sky radiation that was strongly absorbed. The spacial distribution of 1216-A radiation was found to be consistent with scattering of solar photons by hydrogen in accordance with models developed by Meier. The 304-A radiation shows a maximum intensity toward the equator as viewed from White Sands, New Mexico, which suggests scattering of solar photons by helium ions contained within the plasmasphere.