Ultraviolet Emissions Observed near Venus from Mariner V

See allHide authors and affiliations

Science  29 Dec 1967:
Vol. 158, Issue 3809, pp. 1675-1678
DOI: 10.1126/science.158.3809.1675


A Lyman-alpha airglow of atomic hydrogen measured in the outer atmosphere of Venus showed that atomic hydrogen is present. The variation as a function of height indicates that the temperature of the upper atmosphere of Venus is lower than that of Earth. An ultraviolet airglow of atomic oxygen was not found. An ultraviolet nightglow was observed on the dark limb.