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A&A Supplement series, Vol. 125, November I 1997, 551-556

Received October 14, 1996; accepted January 21, 1997

Sky coverage with the auxiliary telescopes Laser Guide Star tilt recovery technique

E. Marchettitex2html_wrap1001 and R. Ragazzonitex2html_wrap1003

Send offprint request: E. Marchetti
tex2html_wrap510  CISAS, vicolo dell'Osservatorio 5, I-35122 Padova, Italy e-mail:
tex2html_wrap510  Astronomical Observatory of Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy e-mail:


Auxiliary telescopes in the neighbourhoods of a main telescope equipped with an LGS can provide, in principle, full sky coverage. The auxiliary telescopes, however, should be able to move around in order to acquire a useful natural guide star (NGS), and to track the LGS, comoving with the scientific target. Detailed expressions and results of numerical simulations are given.

keywords: atmospheric effects -- methods: observational -- telescopes

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