Physics – Optics
Scientific paper
Sep 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980s%26w....19..284v&link_type=abstract
Sterne und Weltraum, vol. 19, Sept. 1980, p. 284-289. In German.
Physics
Optics
Astronomical Observatories, Astronomical Photometry, Electrophotometry, Telescopes, Cassegrain Optics, Chile, Design Analysis, Europe, Optical Scanners, Spectrophotometry
Scientific paper
The history and equipment of the observatory at La Silla (Chile) are presented. Eleven telescopes are in operation at the observatory. A 40 cm telescope is used for photoelectric photometry. Ten of the telescopes are parabolic. One is a double astrograph (grand prism objective) lens telescope. The European Southern Observatory 3.6 m telescope is discussed at length. Observations are possible in three focuses (primary, Cassegrain and coude). The primary focus camera can be used in two different ways, either with the Gascoigne compensator plate, or the triplet compensator plate. With the image dissector scanner in Cassegrain focus, galaxies up to magnitude 19 can be studied spectrophotometrically.
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