ABSTRACTS OF CONTRIBUTED PAPERS

ABSTRACTS OF CONTRIBUTED PAPERS TOPIC 1: SOLAR PHYSICSAND PLANETARY SYSTEMSASTROGEODYNAMIC STUDIES OFLATITUDE VARIATIONS DURING THEPERIOD: 1992-2002E. Alonso, 1 A. Pacheco, 1 R. Podesta, 1 andE. Actis 1 Astrogeodynamics is a growing activity in astro-nomical research. Observatorio Astronomico FelixAguilartakespartofitbymeansofPhotoelectricAs-trolabePA2observationsfromSanJuan, Argentina.Here we present a comparison between Instan-taneous Latitude Variation and data published byIERS, for the period February 1992 to December2002. The resulting curve has been obtained fromobservations of the Fundamental Stars Groups, com-puting weight values of Latitude Variation for eachnight, previously corrected for Pole Movement.Finallyweanalyzethepossibilityofarelationbe-tween this curve and the occurrence of earthquakesof more than 5 magnitudes (Mercalli scale). 1 Observatorio Astronomico Felix Aguilar, San Juan, Ar-gentina. SUBMILLIMETER OBSERVATIONS OF AN X1.2SOLAR FLAREG. Cristiani, 1 C. G. Gimenez de Castro,