![]() ![]() In May, 1996, it was moved to Argentina and settled in the Carlos Ulrrico Cesco Observatory in the province of San Juan, which belongs to the Observatorio Astronómico Félix Aguilar (OAFA) of the Universidad Nacional de San Juan, where it is currently operating at full performance. Since then, this meridian circle has been known as the Automatic Meridian Circle of San Fernando (CMASF). During this period, the Spanish Navy Observatory took part in the formation of the SRS and NPZT, international catalogues sponsored by the International Astronomical Union (IAU), and in the formation of two radio-star catalogues.īetween 19 a complete modernization and automation was carried out in a similar way of one of the Carlsberg Automatic Meridian Circles (CAMC). in 1948, when another meridian circle was received from the English firm Grubb & Parsons which continued to be used for observing in San Fernando until the end of 1987. What we might call modern Astrometry began at the R.O.A. This modern (for its time) instrument began its observations in 1863 and it kept working until the first third of the twentieth century. Subsequently, a new meridian circle was ordered from the English firm Troughton & Simms and was received in San Fernando at the end of 1859 and installed in the East Meridian Circle Room of the Observatory. The first meridian observations were conducted with the telescope of transits in 1833. The origin of Meridian Astrometry at the Spanish Navy Observatory in San Fernando goes back to the first half of the nineteenth century when a telescope of transits, a mercury-compensated pendulum clock (1829) and a mural circle (1834) from the English instrument maker Thomas Jones, were received. ![]()
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