PlaneWave PW1000 Nasmyth Astrograph f/6.0 - PlaneWave CDK1000 - Nasmyth Astrograph f/6.0

The PlaneWave CDK1000 is a fully automated 1-meter class telescope observatory system.

The PW1000 is a complete telescope

• featuring a direct drive altitude-azimuth (Alt-Az) mounting system
• with a diffraction-limited 100mm image circle. The PW1000 is designed to excel at imaging on the largest format CCD cameras available today
• Dual Nasmyth focus ports, allowing simultaneous mounting of two instruments and easy switching between imaging and visual use
• light-weighted optics, are made of zero expansion fused silica materials for excellent thermal stability and maximum throughput
• Zero backlash
• Zero periodic error
• PointXP mount modeling software
• Integrated field de-rotator / rotational field framing
• Integrated primary mirror shutter cover

Concerning the PW1000 we shall gladly provide a detailed offer for: f4.5 reducer, optional derotator-units for different instrument loads, heavy duty focusers suited to mount onto both sides of the fork arms depending on instr. load, tertiary mirror assembly to move the image into either side of the fork, remote dew heater units, remote controlled tube covers, light shrouds and tangent assemblies complement the instrument outfit.

Requires a crating #1323510. The crating will be charged extra

Features

• Optics: Fused Silica has a coefficient of thermal expansion six times lower than Borosilicate (Pyrex) glass, which means that as it cools down, fused silica preserves its shape to a high degree of accuracy. This translates into consistent optical performance and unchanging focus over temperature changes.
• Drive: Direct Drive motors and absolute on-axis encoders eliminate the need for reduction gears, thereby eliminating backlash and periodic error. With high-resolution encoders providing the feedback for the direct drive motors, not only will the telescope track without periodic error and backlash, the mount will also counter wind gusts with precise servo feedback. The direct drive motors can move the telescope at incredible speeds for tracking satellites or just to minimize target acquisition time.
• Tertiary Mirror: The PW1000 includes an integrated rotator for the tertiary mirror, with magnetic locks to position the mirror precisely at either Nasmyth focus position. The rotator can move from one port to the other in under 10 seconds.
• Pointing Accuracy: Better than 10 arcsecond RMS with PointXP Model

Benefits of Nasmyth Focus: The Nasmyth Focus is along the altitude axis so there are virtually no balancing issue as you change out equipment. Eyepieces remain at a constant wheelchair-accessible height, greatly simplifying access to the telescope for public observatories. The rotating tertiary mirror allows you to switch from one Nasmyth port to the other in just seconds, allowing observers to easily transition between imaging and visual use.

The PlaneWave CDK1000 uses the same proven technology as the CDK700. Many CDK700s are deployed around the world at various institutions such as: Caltech, Harvard, Penn State, University of New South Wales, Simon Frasier University, University of Montana and University of Hamburg, and many more.

Fused Silica

Fused silica is a synthetic amorphous silica glass of the highest purity and one of the most transparent glasses made. The optical and thermal properties of fused silica are superior to other types of glass due to its purity. Its transmission and homogeneity exceed those of crystalline quartz without the problems of temperature instability inherent in the crystalline form. Fused Silica has a coefficient of thermal expansion six times lower than Borosilicate (Pyrex) glass, which means that as fused silica cools down, it preserves its shape to a high degree of accuracy. This translates into consistent optical performance and unchanging focus over temperature changes. With its high melting temperature ()~ 1.600 degree Celsius), a very low coefficient of thermal expansion and resistance to thermal shock, fused silica is the material of choice for professional observatories as well as various scientific applications.

Scope of delivery

• Heating elements for dew prevention - The heating pads on the primary and secondary mirror require the #1329110 Delta-T controller sold separately
• OTA Cover - To protect the primary mirror and inside of the optical tube
• Flash drive - Contains software and instructions for collimation and spacing the primary to secondary mirror
• EFA Kit and IRF90 - Port one includes an IRF90 and EFA kit for focusing and de-rotating within PWI2 software and, also relaying mirror temperature data back to the control computer
• Feathertouch focuser and Adapter - Used for visual observing through Port 2 with a user supplied eyepiece
• Soft cover for secondary mirror
• Wireless Gamepad
• Collimating laser assembly
• 12v AC Adapter (for EFA)
• ICRON Ranger Receiver

Specifications

Optics

• Optical Design: Corrected Dall-Kirkham (CDK)
• Aperture (mm): 6000 mm (236,22 inch)
• Focal Length: 6000 mm
• Focal Ratio: f/6
• Image Field: 100 mm
• Back Focus Distance: 14,55" (370 mm) from Mounting Surface of de-rotator
• Central Obstruction: 47% of the Primary Mirror Diameter
• Substrate: Fused Silica
• Image Scale: 29 microns per arcsecond at F/6

Mount

• No mount (OTA only)

Generalt

• Manufacturer: Planewave
• Manufacturer SKU: 1000101
• SKU: 1323300Q
• EAN Code: 4047825035271