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Starizona Hyperion 12 inch astrograph

Prijs: 11.560,00 EUR

 
Product Details


Telescopes can suffer from a variety of aberrations which are inherent in different optical designs. There are six primary aberrations to worry about: spherical aberration, distortion, coma, astigmatism, field curvature and chromatic aberration.

All telescopes are corrected for spherical aberration, and distortion is not a problem over the relatively narrow fields produced by telescopes. Coma causes stars to take on an asymmetric comet-like shape off axis. Coma is inherent in Newtonians, classical Cassegrains, and most Schmidt- Cassegrain telescopes. By using an aspheric mirror, some SCTs eliminate coma. The Ritchey-Chrétien deisgn uses two hyperbolic mirrors to eliminate coma. But such designs still suffer from astigmatism and field curvature, causing enlarged star images over a large field.The Hyperion telescope does not suffer from coma, astigmatism or field curvature. By using an afocal (zero-power) corrector lens system, it can correct for all these aberrations without inducing chromatic (color) aberration. The design uses a parabolic primary mirror and spherical secondary mirror. The corrector lens consists of two elements located in the primary baffle tube. The Hyperion truly delivers the best image quality

  • Flat-field, Harmer-Wynne optical design
  • Diffraction-limited image circle 70mm (1.6°) in diameter
  • RMS spot size less than 9 microns over 84mm (1.9°) diameter image circle
  • No chromatic aberration over 350nm-1100nm range
  • Low thermal expansion carbon-fiber optical tube
  • Starlight Instruments 3.5" Feathertouch Focuser
  • MicroTouch temperature-compensating autofocuser
  • High-precision instrument rotator
  • Integrated telescope control panel with digital readout
  • Wireless control of all electronic telescope functions
  • All electronic features ASCOM compatible
  • CNC machined 6061 aluminum construction
  • Two Losmandy-style dovetail plates
  • Two rear cell cooling fans for rapid thermal stabilization
  • Primary and secondary mirror heaters for dew prevention
  • Made in USA

Specification:

SPECIFICATIONS

  • Aperture: 12.5" (320mm)
  • Focal Ratio: f/8
  • Focal Length: 2540mm
  • Secondary Mirror Diameter: 5.5"
  • Overall Length: 39 inches (45 inches with focuser)
  • Overall Diameter: 15.5 inches
  • Total Weight: 60 lbs.

Extra info:

Product Specificaties

SPECIFICATIONS

  • Aperture: 12.5" (320mm)
  • Focal Ratio: f/8
  • Focal Length: 2540mm
  • Secondary Mirror Diameter: 5.5"
  • Overall Length: 39 inches (45 inches with focuser)
  • Overall Diameter: 15.5 inches
  • Total Weight: 60 lbs.
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