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Proceedings Paper

Shack-Hartmann analysis of the 3.5-m primary mirror of the Galileo telescope
Author(s): Rajiv K. Bhatia; Adriana Ciani; Piero Rafanelli
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Paper Abstract

We present here the results obtained from a Shack-Hartmann analysis of the optical quality of the primary mirror of the Telescopio Nazionale Galileo. We compare our results with those obtained from Zeiss from interferometry, finding a good agreement. The 80% encircled energy is found to be within a diameter of 0.14 arc sec. Calculations of the MTF, EE and PSF and comparison with diffraction theory show a remarkable agreement, indicating that the mirror quality is very near the diffraction limit.

Paper Details

Date Published: 1 February 1994
PDF: 11 pages
Proc. SPIE 1994, Advanced Optical Manufacturing and Testing IV, (1 February 1994); doi: 10.1117/12.167955
Show Author Affiliations
Rajiv K. Bhatia, Telescopio Nazionale Galileo and Osservatorio Astronomico di Padova (Italy)
Adriana Ciani, Telescopio Nazionale Galileo and Osservatorio Astronomico di Padova (Italy)
Piero Rafanelli, Telescopio Nazionale Galileo and Vicolo dell'Osservatorio 5 (Italy)


Published in SPIE Proceedings Vol. 1994:
Advanced Optical Manufacturing and Testing IV
Victor J. Doherty, Editor(s)

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