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13 October 1986Eso's Multimode Instrument For The Nasmyth Focus Of The 3.5 M New Technology Telescope
The ESO New Technology Telescopy (NTT) (1),(2) to be operative by the end of 1988, will have two Nasmyth foci. The telescope diameter is 3.5 m and the Nasmyth F-no is F/11, corresponding to a scale of 187 um/arosec. At one focus the Infrared Spectrograph (IRSPEC) will be installed, while the other focus is reserved for an instrument operating in the 3000 - 10000 Å region.
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H. Dekker, B. Delabre, S. D'odorioo, "Eso's Multimode Instrument For The Nasmyth Focus Of The 3.5 M New Technology Telescope," Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968108