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PlaneWave RC20 Ritchey Chrétien f/6.8 with Fused Silica Optics

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Price: € 56,700.00
(Price incl. German VAT excl. shipping)
Price: € 47,647.06
(Price excl. German VAT excl. shipping)

PlaneWave RC20 Ritchey Chretien f/6.8

The PlaneWave Instruments PW20-RC is a 20 inch (0.51 m) f/6.8 Ritchey-Chrétien (RC) Astrograph telescope. The instrument weight is 140 lbs (64 kg) and comes standard with a back plate retaining ring ready to accept the focuser of your choice.

PlaneWave's CDK astrographs have become the telescopes of choice for universities, industry, and astrophotographers around the world, and now PlaneWave offers the PW-RC series to meet the custom needs of the scientific community. More about the Optical Design.

The RC20 in its native format (no field flattening lenses) uses only a primary and secondary mirror with reflective coatings. This can be useful when making observations primarily on-axis and wide field imaging is not a concern.

  • RC 20 Astrograph, 20 inch Astrograph with Fused Silica Optics
  • modified to Ritchey-Chrétien, uses only a primary and secondary mirror with reflective coatings
  • 8" Dovetail, focal length 3.454 mm (f/6,8)
  • Delta T Ready, 3,5" Hedrick Focuser and EFA Kit separately available
Fused Silica

Specifications

Optical Design
Ritchey-Chrétien (RC)
Aperture (mm)
20" (508 mm)
Focal Length
3.454 mm (135.98 inch)
Focal Ratio
f/6.8
Back Focus Distance
5.8" (147 mm) from Racked in Focuser
Central Obstruction
39% of the Primary Mirror Diameter
Substrate
Fused Silica
Optical length
47 inch (1.194 mm)
Optical Tube Weight
140 lbs (64 kg)
Mount
No mount (OTA only)
Manufacturer
Planewave
Manufacturer SKU
200125Q
SKU
1323221Q
EAN Code
4047825035059

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