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Дата изменения: Sat Sep 7 11:56:24 1996
Дата индексирования: Sat Dec 22 06:53:11 2007
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TRASP 2

The TIRGO telescope is a Cassegrain telescope with a wobbling secondary and optimized for infrared observations. The primary mirror has a diameter of 1.5 m and a focal ratio F/2.3, while the secondary is 20 cm in diameter. The combined focal length is 30 m, corresponding to a focal ratio F/20. The total field-of-view (FOV) is about 12 arcmin, and the scale at the focal plane is 6.9 arcsec/mm.