PlaneWave CDK17 Telescope

Starting Price: $22,500.00
Price as Configured: $22,500.00
Brand: PlaneWave Instruments / SKU: PW-170101Q
PlaneWave manufactures your telescope of choice for unsurpassed astroimaging, research, or satellite tracking. Here are the basics of the PlaneWave CDK17:

  • f/6.8 and 2939mm focal length.
  • No coma, no off-axis astigmatism, and no field curvature.
  • Pinpoint stars across a 70mm image circle.
  • Rock solid fused silica mirrors with low thermal expansion.
  • Carbon fiber optical tube assembly for rigidity and fast cooling.
  • Simple secondary mirror collimation thanks to the fixed primary mirror.
NOTE: Shipping cost will be determined after the order is made and must be paid before the telescope will ship. A shipping quote can be obtained on request.
Packaging (Required)
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Recommended Add-ons and Accessories

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PW-170398 - PlaneWave Counterweight Bracket for CDK17
PW-170398 - PlaneWave Counterweight Bracket for CDK17
$70.00
PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
$1,400.00
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PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
About This Product

This is a reducer designed specifically for flat field telescopes like the CDK. This reduces the f ratio of the CDK telescope 66%. The CDK12.5 f/8 telescope will be reduced down to f/5.3. The CDK14 will be f/4.8  and for CDK17 f/6.8 will be reduced to f/4.5

**NOTE – 125166 adapter is compatible with CDK17 that have 10.24″ back focus.   CDK17 with 8.81″ back focus will use the 200166 focal reducer. See instruction manual for details.

PW-170915 - PlaneWave Ronchi Eyepiece and Adapter Kit for CDK17
PW-170915 - PlaneWave Ronchi Eyepiece and Adapter Kit for CDK17
$290.00
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PW-170915 - PlaneWave Ronchi Eyepiece and Adapter Kit for CDK17
About This Product
INCLUDES: CDK BACKPLATE ADAPTER, RONCHI EYEPIECE, and RONCHI EYEPIECE SPACERS (CDK17WF SPECIFIC SPACER + CDK14-CDK24 STandARD SPACER)
PW-170970-KIT - PlaneWave CDK17 Spandex Shroud and Spacer SET
PW-170970-KIT - PlaneWave CDK17 Spandex Shroud and Spacer SET
$650.00
PW-170970 - PlaneWave CDK17 Upper Cage Light Shroud
PW-170970 - PlaneWave CDK17 Upper Cage Light Shroud
$180.00
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PW-170970 - PlaneWave CDK17 Upper Cage Light Shroud
About This Product
This is a spandex fabric light shroud that blocks out stray light and minimizes dust on the primary mirror.
PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
$600.00
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PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
About This Product
NOTE: Shipping cost will be determined after the order is made and must be paid for before the item will ship. A shipping quote can be obtained on request.
PW-1702103 - PlaneWave Sliding Counterweight System Rail & Brackets for CDK17
PW-1702103 - PlaneWave Sliding Counterweight System Rail & Brackets for CDK17
$600.00
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PW-1702103 - PlaneWave Sliding Counterweight System Rail & Brackets for CDK17
About This Product
Requires sliding weight system counterweights, not included.
PW-170150 - PlaneWave Counterweight Accessory for CDK17
PW-170150 - PlaneWave Counterweight Accessory for CDK17
$230.00
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PW-170150 - PlaneWave Counterweight Accessory for CDK17
About This Product
This PlaneWave counterweight accessory mounts to the front ring of the CDK17 for critical balance in declination. The kit comes with a mounting bracket and three 0.5lb weights. Additional weights (PW-125382) can be purchased separately.
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Price as Configured: $22,500.00

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Optical System

Optical Design Corrected Dall-Kirkham
Aperture 17 inch (432 mm)
Focal Length 2939 mm (115.71 inch)
Focal ratio F/6.8
Central Obstruction 23.7% by surface area; 48.6% of the primary mirror diameter
Back Focus from Mounting Surface 10.32 inch (262.33 mm)
Back Focus from Racked in Focuser 7.24 inch (184 mm)
Weight 106 lbs (48 kg)
OTA Length 42 inch (1067 mm)
Optical Performance 6.5 micron rms at 21mm and 9.6 micron at 26mm off-axis
Upper Cage Carbon fiber truss
Lower Cage Carbon fiber truss with carbon fiber light shroud
Optimal Field of View 70mm image circle

Secondary Mirror

Diameter 190 mm (7.48 inch)
Material Fused silica (quartz)
Shape Spherical
Coating Enhanced aluminum – 96%

Primary Mirror

Optical Diameter 17 inch (432 mm)
Outer Diameter 17.5 inch (445 mm)
Shape Prolate ellipsoid
Material Fused silica (quartz)
Coating Enhanced aluminum – 96%

Lens Group

Diameter 105 mm (4.13 inch)
Number of lenses 2
Coating Broadband AR Coatings (less than .5% reflected from 400 to 700nm)

Standard Features

Carbon Fiber Truss Design Minimizes thermal expansion which causes focus shift with changes in temperature
Dovetail Expansion Joint Allows for the difference in thermal expansion between carbon fiber and aluminum. The expansion joint allows the aluminum dovetail expand and contract without stressing the carbon fiber lower truss
Cooling Fans Three cooling fans ejecting air from the back of the telescope and four fans blowing across the boundary layer of the mirror surface. This helps the telescope to reach thermal equilibrium quickly. The fans are controlled by a computer if the optional Electronic Focus Accessory (EFA Kit) is purchased.

Shipping

Crated Shipping Weight 225 lbs (102.1 kg)
Crate Width 30 inch (762 mm)
Crate Height 37 inch (940 mm)
Crate Length 58 inch (1,473 mm)

Included Accessories

Primary Mirror Cover To protect the primary mirror
PlaneWave Thumb Drive Contains software and instructions for collimation and spacing the primary to secondary mirror
12VDC Power Supply Provides power for the fans