Polarimetric studies of Moon and planets at Abastumani Astrophysical Observatory

Details Polarimetric studies of Moon and planets at Abastumani Astrophysical Observatory Polarimetric studies of Moon and planets at Abastumani Astrophysical Observatory

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986rpspr...1..127d&link_type=abstract

In its USSR Report: Space (JPRS-USP-86-001) p 127-128 (SEE N86-20178 10-88) Transl. into ENGLISH from Astronomicheskiy Vestni

Astronomy and Astrophysics

Astronomy

Mapping, Moon, Planets, Polarimetry, Space Observations (From Earth), Accuracy, Astronomical Observatories, Craters, Maps, Polarization (Waves)

Scientific paper

Abastumani Observatory has long been noted for polarimetric investigations of celestial bodies. Such observations are made using the 40-cm F/17 Zeiss refractor which is free of instrumental polarization. A significant series of lunar brightness images was obtained and these were used in publishing an atlas containing 21 such lunar maps for different phase angles. A detailed study was made of more than a hundred different features on the Moon, with particular attention being devoted to the accuracy in measuring maximum and minimum polarization and the inversion angle in different parts of the spectrum. Exotic phenomena were discovered on the Moon, especially near Aristarchus Crater, where high degrees of polarization of several small surface sectors were repeatedly measured. Polarimetric observations at the observatory have been made since 1967. Observations were made on 170 nights and more than 10,000 individual measurements were made. This made possible a clear visualization of the quantitative picture of the distribution of polarization over the apparent disk and the nature of its change over a long time interval.

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