Asteroidal Occultation of Regulus:. Differential Effect of Light Bending
Abstract
Asteroid 166 Rhodope moved at 14.4 milliarcsec/s during the occultation of Regulus of October 19, 2005. We made a 25 Hz frame rate video (resolution 0.6 mas per frame) near centerline in Vibo Valentia, Italy. Stellar and asteroidal diameters and relativistic light bending by solar field are outlined. The 0.16 mas differential effect of light bending (star-asteroid) is recovered fitting 7 observations with asteroid spherical model.
- Publication:
-
The Eleventh Marcel Grossmann Meeting On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories
- Pub Date:
- September 2008
- DOI:
- 10.1142/9789812834300_0469
- Bibcode:
- 2008mgm..conf.2594S
- Keywords:
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- Occultations;
- Fresnel diffraction;
- Gravitational light bending;
- Stellar diameter