The spectroscopy of molecular oxygen is associated with the atmospheric processes of aurora and airglow. Its long-wave infrared camera, ultraviolet imager, and lightning and airglow camera continue normal operation. The WINDII instrument measured wind, temperature and emission rate from airglow and aurora. The airglow observed over Ganymede is not spatially homogeneous like that over Europa. Through the spacecraft window he viewed the zodiacal light and night airglow layer. Even at the best ground-based observatories, airglow limits the photosensitivity of optical telescopes. Very low down, however, atmospheric extinction reduces the apparent brightness of the airglow. This image provides a measurement of the intensity of the airglow phenomenon in the near-infrared. The rayleigh, a unit of photon flux used to measure airglow, is named after him. This is caused by two main sources&colon; "airglow" and "scattered light". This work led to his posthumous nickname "the Airglow Rayleigh". They took 44 pictures as part of this experiment with three being of actual airglow. The first cup was won by Airglow, designed by John and Mark McIntyre. In addition, they are affected by weather conditions, airglow and the phase of the Moon. Work on Airglow began after John accompanied Daedalus on its epic flight.