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THE WIDESCREEN CENTER


ASTROSIB RC360 RITCHEY–CHRETIEN TELESCOPE

ASTROSIB RC360 RITCHEY–CHRETIEN TELESCOPE

Product code: TA150
Manufacturer: Astrosib
Please contact us to confirm the price

MAIN OPTICAL SPECIFICATIONS

  • Primary mirror diameter - 360 mm
  • Primary focal ratio - F/3
  • Secondary mirror diameter - 130 mm
  • Equivalent focal ratio - F/8
  • Equivalent focal length - 2880 mm
  • Back Focus (from primary mirror surface) - 307 mm
  • Primary to Secondary Spacing - 702 mm
  • Mirrors material - LK-7 (low expansion optical glass)

Optics made from AstroSitall are available as an option.

  • Optical accuracy - 1/4 wave peak-to-valley of wave front in assembled system or better and 1/25 wave RMS or better, Strehl Ratio is 0.95 or is higher.
    The interferometric test report is supplied with each telescope.
  • Coating of surfaces - Al + SiO2 (Quartz) overcoat

THE DESCRIPTION OF THE MECHANICAL DESIGN

  • Length of a tube (without focuser) - 920 mm
  • Material of a tube - The aluminum alloy, thickness of 2 mm
  • Design of a tube - welded, edges of rigidity - diaphragms inside are maintained.
  • The platform of fastening for mounting having the size 230×350 mm, includes
    internal system of a clip of collars of a tube and allows fastening to any mount.
  • The system of active cooling includes three fans maintained on a back cover of telescope, the switch and a socket demanding source of a constant voltage of 12 V
  • Net weight - 35 kg

FINDERSCOPE

  • Diameter of objective lens - 80 mm
  • Magnification - 13,5×
  • Field of vision - 3,6°

FOCUSER

We offer one of three variants of a complete set at the request of the customer:

Variant #1

  • Type - helical
  • Internal diameter of a focuser tube - 96 mm
  • Target thread - M106×1
  • Carrying out of focus plane (for adapter-ringM84×1) - 110 mm
  • Distance of linear moving of the focuser - 35 mm
  • Relative speed of moving of the focuser - 6 mm / revolution
    Note: during the focusing process the carrying tube of the focuser does not rotate. Provision is made for turn of unit with the reception equipment around the optical axis.
        Complete set:
  • Adapter M84×1 female (M85×0.75 on theother side)
  • Adapter M84×1 male / M60×0.75 female
  • Adapter M60×0.75 female (for installation of a stardiagonal)
  • Adapter M60×0.75 male / 2" eyepiece adapter
  • Eyepiece adapter 2" / 1.25"
  • Star diagonal 2"
  • Off-axis guider with connecting thread M84×1 femaleand 1.25" eyepiece adapter for the eyepiece-guider or CCD autoguider.

    Variant #2
  • Type - Crayford
  • Internal diameter of a focuser tube - 67 mm
  • Target thread - M68×1
  • Carrying out of focus plane (for target thread M68×1 - 110 mm
  • Distance of linear moving of the focuser - 100 mm
  • Relative speed of moving of the focuser - 12.5 mm / revolution of knobs
    Note: Provision is made for turn of the focuser around the optical axis.
        Complete set:
  • Adapter M68×1 male / thread 2" - 24 UNS-2B male
  • Adapter 2" - 24 UNS-2B female / M42×0.75 male (will consist of two details, with an opportunity of turning around the optical axis)
  • Adapter M68×1 male / 2" eyepiece adapter
  • Eyepiece adapter 2" / 1.25"
  • Off-axis guider with connecting thread M68×1 male / 2" - 24 UNS-2B male and 1.25" eyepiece adapter for the eyepiece-guider or CCD autoguider.
  • Variant #3

    Instead of astrosib focusers the detail - an adapter for fastening a focuser of any other manufacturer is maintained


     


     


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