Centering the secondary mirror of the Tirgo telescope

Year: 1980

Authors: Guidarelli S.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: A procedure for centering the secondary mirror of a Cassegrainian telescope on the mechanical mount has been devised using the classical principle of observing the moment of a reflected image when the mirror is rotated. The ccentering is obtained by iteration, keeeping the reflecting surface in contect with a circular centred edge. The achievable accuracy, accounting for the change in the hyperboloid shape of the mirror from a sphere, has beeen calculated; the theoretical values were checked using the procedure for centering the secondary mirror of the Tirgo infrared telescope.

Journal/Review: APPLIED OPTICS

Volume: 19 (15)      Pages from: 2520  to: 2523

KeyWords: Tirgo telescope
DOI: 10.1364/AO.19.002520

Citations: 1
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