2.1 m (82") Otto Struve Telescope

otto struve telescope

See:
Observing Support: 2.1 m Telescope

Instruments

Prime f/3.9 focus

Argos

Cassegrain f/13.7 focus

Sandiford Cass Echelle Spectrometer (SES)

Cassegrain Spectrometer (es2)

CCD WHT Camera

Imaging Grism Instrument (IGI)

CQUEAN

Optical

Primary Mirror
Diameter 2.08 m (82")
Focal length 8.13 m (26.7')
F-ratio 3.90
Field angle 63.5 arcmin
Plate scale 25.4 arcsec/mm
Cassegrain f/13.7 focus
Focal length 28.53 m (96.6')
F-ratio 13.65
Field angle 20 arcmin
Plate scale 7.25 arcsec/mm
Coudé focus - not presently in use
Focal length 47.70 m (156.5')
F-ratio 22.9
Plate scale 4.3 arcsec/mm

Mechanical

Primary Mirror
Weight 1900 kg (4200 lbs)
Thickness 29.8 cm (11.75")
Material pyrex
Telescope Tube
Diameter 2.64 m (8'8")
Length 8.2 m (27')
Telescope
Weight 41 t (45 tons)
Bearings
Polar axis ball radial thrust bearings
Dec axis taped roller bearings
Dome
Diameter 19 m (62')
Weight 104 t (115 tons)

Historical

Construction
Started 1933
Completed 1939
Contractor
Design Otto Struve
Telescope Warner and Swasey Co.
Dome Patterson Leitch Co.
Optics C. Lundin

2 December 2015
Astronomy Program · The University of Texas at Austin
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