Computer Science – Performance
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988itp..work...17d&link_type=abstract
In NASA, Ames Research Center, Second Workshop on Improvements to Photometry p 17-33 (SEE N89-13310 04-89)
Computer Science
Performance
5
Assessments, Electrophotometers, Precision, Range (Extremes), Accuracy, Brightness, Comparison, Errors, Stars, Telescopes
Scientific paper
URSULA is a multiband astronomical photoelectric photometer which minimizes errors introduced by the presence of the atmosphere. It operates with two identical channels, one for the star to be measured and the other for a reference star. After a technical description of the present version of the apparatus, some measurements of stellar sources of different brightness, and in different atmospheric conditions are presented. These measurements, based on observations made with the 91 cm Cassegrain telescope of the Catania Astrophysical Observatory, are used to check the photometer accuracy and compare its performance with that of standard photometers.
de Biase G. A.
Fedel Bruno
Paterno' Lucio
Santagati G.
Ventura Rodrigo
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