Petzvali astrograaf * * * Petzval's astrograph
Petzvali astrograaf
Petzvali astrograaf oli algselt kaamera, mis oli komplekteeritud Zeissi
teleskoobiga. 1927. a paigaldati eraldi 1897. a Repsoldi seniitteleskoobi
tarbeks ehitatud paviljoni. Oli
mõeldud eelkõige
komeetide ja asteroidide fotografeerimiseks ning taevaalade pildistamiseks.
Saadud fotosid kasutati (ja kasutatakse ka praegu) muutlike tähtede
otsimiseks.
Objektiiv Ø 160 mm, fookuskaugus 78 cm.
Vaata ka Zeissi ajalugu.
Petzval's astrograph
It was initially used as an astrocamera. In 1927 it was detached from the
Zeiss refractor, mounted on the support of the old heliometer and
placed in the former pavilion of the zenith telescope. Since then it has
been used as a standalone astrograph.
Diameter 160 mm, focal lenght 78 cm.
See also the history of the Zeiss refractor.
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