Telescopes

Four fixed-mount telescopes reside in SFSU's roll-top roof observatory. All are reflectors, using mirrors to collect and focus light. We also share operations of the 30-inch Leuschner Observatory telescope with UC Berkeley, controlling it remotely from Thornton Hall. Several portable telescopes, including two that are specially equipped for solar observing, are used for classes and special events. Telescope specifications are listed below and summarized here along with some useful definitions.

Meade 16" LX-200 Schmidt-Cassegrain

This telescope and its robotic mount were generously donated by Physics and Astronomy alumnus John Luongo.

Technical specifications:

 

Meade 12" LX-600 Schmidt-Cassegrain

Technical specifications:

  • Aperture: 12 inches (305 mm)
  • Focal length: 96 inches (2438 mm)
  • Focal ratio: f/8
  • Mount: alt/az
  • Telescope manual

 

Epoch Instruments 10" Newtonian

Technical specifications:

  • Aperture: 10 inches (254 mm)
  • Focal length: 65 inches (1651 mm)
  • Focal ratio: f/6.5
  • Mount: equatorial
  • Mount manual

 

Orion SkyQuest XT10i Intelliscope 10" Newtonian

Technical specifications:

  • Aperture: 10 inches (254 mm)
  • Focal length: 47 inches (1200 mm)
  • Focal ratio: f/4.7
  • Mount: alt/az (Dobsonian)
  • Telescope manual

 

Orion SkyQuest XT8i Intelliscope 8" Newtonian

Technical specifications:

  • Aperture: 8 inches (203 mm)
  • Focal length: 47 inches (1200 mm)
  • Focal ratio: f/5.9
  • Mount: alt/az (Dobsonian)
  • Telescope manual

 

Meade ETX125 5" Maksutov-Cassegrain

Technical specifications:

  • Aperture: 5 inches (125 mm)
  • Focal length: 47 inches (1900 mm)
  • Focal ratio: f/15
  • Mount: alt/az
  • Telescope manual

 

Meade ETX125 5" Maksutov-Cassegrain with Solar Filter

Technical specifications:

  • Aperture: 5 inches (125 mm)
  • Focal length: 47 inches (1900 mm)
  • Focal ratio: f/15
  • Mount: equatorial
  • Telescope manual

 

Meade SolarmaxII 3.5" Coronado with H-alpha solar filter

Technical specifications:

  • Aperture: 3.5 inches (90 mm)
  • Focal length: 31.5 inches (800 mm)
  • Focal ratio: f/9
  • Mount: equatorial
  • Bandpass: 0.7 Angstroms
  • Telescope manual