50BiN: Fundamental parameters

The fundamental parameters of the system:

Telescope (optical and mechanic):

  • Structure: Twin telescope
  • Aperture: 50cm
  • Mount: German EQ
  • Optical System: Richey-Chrétien
  • Focal ratio: F/3 primary; F9.5 system
  • Focal length: 4753mm ± 25mm
  • FOV: 20'x20'
  • Wavelength: B or V for one tube and R for the other (covers Johnson, SDSS, Strömgren systems)
  • Mirror material: Astro Sitall
  • Coating: Al+SiO2, Enhanced
  • Open Truss Carbon Tube
  • Precision Secondary Mirror Focuser
  • Active computer controlled cooling
  • Focuser capability: 8Kg
  • RC Field Flatterner/Corrector
  • Direct Drive Mount
  • 8" RMS pointing accuracy (Zenith distance < 70 degree)
  • Open-loop tracking: 0.1" over 10sec and 0.35" over 300sec RMS
  • Slew speed: 10deg/s for both axes

CCD:

  • Andor, DZ-936
  • Pixel size: 13.5μm
  • Active pixels: 2048x2048 (20'x20')

Filters:

  • Size: 50mmx50mm
  • Thickness: 5mm
  • Position on each wheel: 4