Astrolabe Photoelectric PAII. An Experience of 15 Years of Cooperation

Details Astrolabe Photoelectric PAII. An Experience of 15 Years of Cooperation Astrolabe Photoelectric PAII. An Experience of 15 Years of Cooperation

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rmxac..35..313a&link_type=abstract

XII Latin American IAU Regional Meeting (Eds. G. Magris, G. Bruzual, & L. Carigi) Revista Mexicana de Astronomía y Astrofísica (

Astronomy and Astrophysics

Astronomy

Scientific paper

Following a cooperation agreement between the Chinese Academy of Sciences, CONICET, La Plata National University and the San Juan National University, on February 1992, the Photoelectric Astrolabe Mk 2 (PA2). was placed at the Félix Aguilar Astronomical Observatory in San Juan (Argentina). This instrument, designed and built in Nanging (China), is fully automatic and can observe stars brighter than 11.5 apparent magnitude. Similar instruments are simultaneously operated in China (Beijing, Shangai and Yunan) in order to obtain homogeneous Star Catalogues of great precision and extended to faint stars. It also brings secondary results as Catalogues of Optic Radio Sources, Planets, Minor Planets, Coordinates of the Instantaneous Pole and Earth Rotation Parameters. Some results obatined during these 15 years are: the 1st, 2nd, and 3rd San Juan Photoelectric Astrolabe Catalogues, which are referred to the Southern Hemisphere. These have been afterwards related to those observed in the Northern Hemisphere (China), producing the 1st Global Astrolabe Star Catalogue, which contains more than 10.000 stars with declinations from +80 to -80 degrees. Nowadays we are performing Astrogeodynamics Studies which consist in the analysis of anomalies of Time-Latitude variations, and then relate them to big earthquakes occurred in San Juan during that period.

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