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PLANEWAVE
The CDK700, a 0.7 meter, is a fully automated observatory class telescope and direct drive alt-azimuth mounting system designed and engineered by PlaneWave. PlaneWave is combining the revolutionary CDK optical design with an innovative direct-drive alt/az mount technology that sets a new standard for small observatory telescopes.
Available Upon Request
This category includes products which are not kept in stock and for some reasons -which don’t depend on our company- can’t be available in less than 14 days. Specifically, this category includes new products thar are pre-advertised by manufacturers, however they are not available in Greece yet. You can pre-order these items with a special preferential price. If the estimated arrival date of this product is already known, then the estimated date will be written above the indication “AVAILABLE UPON REQUEST”.
PlaneWave CDK700 Nasmyth Astrograph f/6.6
The CDK700, a 0.7 meter, is a fully automated observatory class telescope and direct drive alt-azimuth mounting system designed and engineered by PlaneWave. PlaneWave is combining the revolutionary CDK optical design with an innovative direct-drive alt/az mount technology that sets a new standard for small observatory telescopes.
With a 70mm image circle, the CDK700 is designed to excel at imaging on large format CCD cameras. The optical system utilizes a Nasmyth focus through both altitude bearings allowing your camera or eyepiece to remian at a fixed height while holding heavy instruments without needing to rebalance the optical tube assembly. Instrument can be installed on both sides of the fork mount and easily accessed using the included rotating tertiary mirror system. The Focusser / Image Rotator is available as an accessory with encoders for 20 kg instrument weight, as well as a larger version for instruments up to 60 kg.
With high-resolution encoders providing the feedback for the direct drive motors, not only will the telescope track without periodic error or have any backlash at all, but the mount will be able to counter against wind gusts. The direct drive motors can move the telescope at incredible speeds for tracking satellites or just to minimize target acquisition time.
The telescope is also available in Ritchey-Chrétien (RC) optics
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
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.
Spot diagram for 28" CDK optics
These two simulations are showing the CDK's stunning performance. The first is a spot diagram and the second is a diffraction simulation. The spot diagram for 28" CDK optics on the optical axis, 21mm- and 35 mm off-axis.
The sqaures in the diagram are 9 micrometer (0.009 mm) wide.
Focusing unit
For the CDK 700, a focusing unit is under devolopment, which also compensates the image field rotation in the Nasmyth Foki. The motor-driven focussing uses three guidances and toothed belts and is therefore "free from play and tipping". The rotation of the unit is realized by a worm gear transmission.
Geometric dimensions
The figure shows the geometric dimensions of the CDK 700. The image center of the Nasmyth Foki is just under 1.2 m above the ground level.
IMPORTANT:
Τhe telescope is transported from abroad, with extra costs of special packaging and shipping. These costs are related to the transport of the telescope from abroad to Greece and are irrelevant of the shipping cost within Greece. Please, contact us for the total cost.
| Net Weight (g) | 544000 |
|---|---|
| Optical design | Κατοπτρικό Dall-Kirkham |
| Aperture (mm) | 700 |
| Focal length - F (mm) | 4540 |
| Focal ratio (f/) | 6.5 |
| Box 1 | 1016 x 1219 x 1981 mm ( 226.8 Kg ) |
| Box 2 | 990 x 1778 x 1067 mm ( 249.5 Kg ) |
In the box:
Specifications:
OPTICS
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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