Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...39..459p&link_type=abstract
Icarus, vol. 39, Sept. 1979, p. 459-472.
Astronomy and Astrophysics
Astronomy
Astronomical Photometry, Methane, Planetary Surfaces, Spectral Bands, Uranus (Planet), Visual Photometry, Atmospheric Attenuation, Fourier-Bessel Transformations, Graphs (Charts), Image Processing, Limb Darkening, Spectral Resolution, Uranus, Photometry, Disk, Brightness, Polar Regions, Limbs, Methane, Aerosols, Models, Structure, Optical Properties, Radial Distance, Telescopic Observations, Restoration Techniques
Scientific paper
Orthogonal narrow-band (100 A) photoelectric slit scan photometry of Uranus has been used to infer the basic two-dimensional structure of the disk within the 7300-A methane band. Numerical image reconstruction and restoration techniques have been applied to quantitatively estimate the degrees of polar and limb brightening on the planet. Through partial removal of atmospheric smearing, an effective spatial resolution of approximately 0.9 arcsec has been achieved. Peak polar, limb, and central intensities on the disk are in the respective proportions 3:2:1. In addition, the bright polar feature is displaced from the geometric pole towards the equator of the planet.
Franz Otto G.
Price Michael J.
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