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During the four-month period from April to July 1960, a two-colour airglow photometer of the Huruhata type (Huruhata, Nakamura, and Tanabe 1957), recorded intensities of the night-sky emission at 5577 and 5300 A at Brisbane (geographic latitude 27 30' S., longitude 153 06' E., and geomagnetic latitude 35 06' S.). A total of 156 hr of recording during 19 nights was obtained. A complete sky survey was made each 16 min. The corrections for van Rhijn variation and atmospheric extinction were applied in the analysis.

The 5577 Å OI Emission Line of the Airglow at Brisbane