PlaneWave 20″ Optimised Dall Kirkham

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PlaneWave 20″ Optimised Dall Kirkham

SKU: 200120Q
$68,499.00

– Price shown includes GST
– GST is removed at checkout for NZ

Out of stock. Can be pre ordered.
For Availability Call 02 9518 7255 or email sales@bintel.com.au

QUANTITY

The PlaneWave 20″ Optimised Dall-Kirkham has been design with coatings that are optimized to transmit in infrared or ultra violet wavelengths.  It is diffraction limited across a 20mm image circle at the focal plane.  There are no refractive lens, only reflective components to the design.  For IR application, reflectives coatings are a protected gold which give better than 98% reflectivity from .65 micron (650nm) to 5 micron (5000nm).  This design is ideal for infrared astronomy or LIDAR applications.  UV optimized coatings can also be used at an additional cost.

OPTICAL SYSTEM

Aperture 20″ (.51m)
Focal Length 3454 mm
Central Obstruction 39% of the Primary Mirror Diameter
Back Focus 8.9″ from focuser mounting surface, 5.81″ from racked in focuser
Weight 140 lbs
OTA Length 47″
Upper Cage Carbon Fiber Truss
Lower Cage Carbon Fiber Truss with Carbon Fiber light shroud
Dimensions Overall Dimensions

SECONDARY MIRROR

Diameter 7.5″
Material Precision Annealed Pyrex
Shape Spherical
Coating Protected Gold Reflective Coating – 98% (.65-16micron)

SECONDARY MIRROR

Material Precision Annealed Pyrex

TERTIARY MIRROR

Material Precision Annealed Pyrex

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 aluminium. The expansion joint allows the aluminium dovetail expand and contract without stressing the carbon fiber lower truss
Cooling Fans Three cooling fan blow out of the optical tube pulling air though the telescope and pass the primary mirror. 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 291 lbs   (132.0 kg)
Crate Width 32 inch   (813 mm)
Crate Height 36 inch   (914 mm)
Crate Length 59 inch   (1,499 mm)

NOTE: This item has a lengthy leadtime. for more details email: education@bintel.com.au 

PlaneWave 20″ Optimised Dall Kirkham

SKU: 200120Q

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100% AUSTRALIAN OWNED & SUPPLIED

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Have a question about this product?

    CALL NOW : +61 2 9518 7255 OR EMAIL BELOW


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