Physics – Optics
Scientific paper
Oct 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976orion..34..132c&link_type=abstract
Orion, vol. 34, Oct. 1976, p. 132-136. In French.
Physics
Optics
Astronomical Observatories, Astronomical Photometry, Cassegrain Optics, Telescopes, Chemical Composition, Galactic Clusters, Stellar Luminosity, Stellar Spectrophotometry, Ubv Spectra
Scientific paper
The paper gives a general description of the mount and measuring arrangement for the Geneva Observatory 40-cm Cassegrain photometric telescope, which has been installed at the La Silla Observatory in northern Chile, equipped by the European Southern Observatory, for the purpose of extending the Geneva seven-color photometric measurements to the southern sky. The measuring site is actually detached from the cupola where the telescope is located for greater convenience of the observer. Observation programs include systematic measurement of all nonvariable stars brighter than 4.5 mag, measurement of clusters of galaxies, measurement of the stars of the Scorpion-Centaur moving cluster, survey of the southern galactic pole and certain stars of the galactic halo, and a sampling of stars (mostly of type A) with spectral peculiarities.
Cramer Noel
Rufener F.
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