A unique airborne observation

Details A unique airborne observation A unique airborne observation

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976s%26t....52...23e&link_type=abstract

Sky and Telescope, vol. 52, July 1976, p. 23-25. NSF-supported research;

Physics

Optics

7

Airborne Equipment, Atmospheric Refraction, Electrophotometers, Mars Atmosphere, Stellar Occultation, Abundance, Atmospheric Composition, Cassegrain Optics, Infrared Astronomy, Light Transmission, Refractivity, Temperature Profiles

Scientific paper

The occultation of 3rd magnitude Epsilon Geminorum by Mars was observed using a 36-inch telescope equipped with a photoelectric photometer at the bent Cassegrain focus, carried aboard the Kuiper Airborne Observatory at altitudes up to 45,000 feet. Scintillation from the earth's atmosphere was greatly reduced in comparison with ground observations. The observations clearly show the central flash, caused by the symmetrical refraction of light by the atmosphere of Mars. The data are being analyzed to obtain temperature profiles and to assess the relative abundance of argon and carbon dioxide in the atmosphere of the planet.

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