Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..687p&link_type=abstract
Kosmicheskie Issledovaniia, vol. 14, Sept.-Oct. 1976, p. 687-690. In Russian.
Astronomy and Astrophysics
Astronomy
Astronomical Photography, Image Contrast, Planetary Surfaces, Relief Maps, Venus Probes, Albedo, Computer Techniques, Imaging Techniques, Photometry, Planetary Atmospheres, Venera Satellites
Scientific paper
On the assumption of an orthotropic surface for Venus, possible contrasts are calculated for two negative relief forms on the Venusian surface: an extended furrow with triangular cross section, and a crater. Taking into account albedo results in less contrast. Error resulting from not taking into account multiple reflections from the sides of the objects is calculated. The contrasts for the furrow and crater are commensurable with, or larger than, those for a stepped object. The results are valid for any surface located at a large optical depth in a conservative scattering medium.
Goron A. I.
Panfilov A. S.
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