PT2 - Equivalence Principle Tests |
Speaker_ |
Sigismondi, Costantino |
Talk _ |
Solar Eclipses and Relativistic Tests of Lunar Motion |
Abstract _ |
During a central solar eclipse it is possible to determine with an accuracy better than ephemerides the position of the limits of totality/annularity. Uncertainties on current lunar ephemerides are discussed. The ephemerides can be upgraded with multiple observations of Baily Beads from eclipses' limits. The possibility of relativistic tests on lunar motion based upon eclipses data, in comparison with the lunar laser ranging, is presented. Examples on the annular eclipse of Spain (Oct. 3, 2005) and the total one in Lybia (Mar. 29, 2006) are also shown. |