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McDonald Observatory

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Research Facilities

9.2m Hobby-Eberly Telescope

2.7m Harlan J. Smith Telescope

2.1m Otto Struve Telescope

0.8m Telescope

0.8m Laser Ranging Telescope

McDonald Library

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Employment
2.1m (82") Otto Struve Telescope


Instruments

Prime f/3.9 focus
Argos
  - PI Instrument

Cassegrain f/13.7 focus
Sandiford Cass Echelle Spectrometer (CE)
Cassegrain Spectrometer (es2)
CCD WHT Camera
Imaging Grism Instrument (IGI)
Photometer (P45)

Cautions
2.1m Cautions

Optical

  Primary Mirror
diameter:
2.08m (82")
focal length:
8.13m (26.7')
f-ratio:
3.90
field angle:
63.5 arcmin
plate scale:
25.4 arcsec/min

  Cassegrain f/13.7 focus
focal length:
28.53m (96.6')
f-ratio:
13.65
field angle:
20 arcmin
plate scale:
7.25 arcsec/mm

  Coudé focus - not presently in use

focal length:
47.70m (156.5')
f-ratio:
22.9
plate scale:
4.3 arcsec/mm

Mechanical

  Primary Mirror
weight:
1900kg (4200 lbs)
thickness:
29.8cm (11.75")
material:
pyrex

  Telescope Tube
diameter:
2.64m (8'8")
length:
8.2m (27')

  Telescope
weight:
41t (45 tons)

  Bearings
polar axis:
ball radial trust bearings
dec axis:
taped roller bearings

  Dome
diameter:
19m (62')
weight:
104t (115 tons)

Historical

  Construction
started:
1933
completed:
1939

  Contractor
design:
Otto Struve
telescope:
Warner and Swasey Co.
dome:
Patterson Leitch Co.
optics:
C. Lundin
otto struve dome

otto struve telescope
 




14 May 2007
Astronomy Program · The University of Texas at Austin · Austin, Texas 78712
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