Photometry and polarimetry of the asteroid 24 Themis.

Details Photometry and polarimetry of the asteroid 24 Themis. Photometry and polarimetry of the asteroid 24 Themis.

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994kfnt...10q..45c&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 10, No. 2, p. 45 - 49

Physics

2

Minor Planets: Photometry, Minor Planets: Polarimetry

Scientific paper

The light curves and the phase relations of the brightness and polarization of 24 Themis were obtained as a result of photometric and polarimetric observations made in 1992 March - May. The light curve amplitude is 0m09, the parameters H and G of the brightness phase dependence are 7.068±0m009 and 0.188±0m018, respectively, and the average value of colour B - V is 0.678±0m003. The main parameters of the phase dependence of polarization have been determined: Pmin= -1.62±0.05%, αmin= 9.0±0.5°, αinv= 20.5±0.5°, h = 0.191±0.015. The new and more accurate estimates of polarimetric albedo pv= 0.074 and diameter D = 161 km of this large but poorly studied C-type asteroid have been obtained.

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