Newtonian 2
The Telescope 3 (Newtonian 500mm. F/3,8. Chile) consists of the following components
Astrograph specs:
- Manufactured by ASA
- http://www.astrosysteme.com
- Aperture: 500 mm
- Focal length: 1900 mm
- Focal length with 4" Wynne Corrector: 1900 mm
- Focal ratio with 4" Wynne Corrector: f 3.8
- Corrected Field of View with 3" Wynne Corrector: 50 mm
- Backfocus with 4" Wynne Corrector: 59,34 mm
- Secondary mirror : 150 mm (glued)
- Spider for secondary mirror: ASA double spider
- Central obstruction: 28%
- Focuser: OK3Z (4") for camera payload up to 15 kg, HUB 15 mm
- Software (ASCOM-suitable): TCP/IP
- Camera assembling on focuser Directly assembled by the ASA red wheel or with dovetail with Off Axis
- Tube CFK: carbon fibre tube inside designed with black velvet to protect against stray light
- Tube length: 1631 mm
- Tube weight: 47 kg
- Thickness of tube wall: 7 mm
- Tube diameter: 590 mm
- Main mirror: Parabolic
- Material: Suprax, < 1/7 Lambda wave P/V, 97% Reflexion, with Zygo Interferogramm
- Main mirror holder: 9 point floating cell
- Power supply: 5 - 15 V
German equatorial mount specs:
- Diameter of axis: 85 mm hollow axis
- Bearing 4 preloaded taper roller bearings: 130/85 mm
- Weight of mount without counterweight shaft: 38,5 kg (without bracket, only the axes)
- Loading capacity (only instrument): 100 kg
- Drive Noiseless high torque direct drive motors in both axis
- Voltage: 24V
- Amperage: 0,4 - 0,8 Ampere
- Absolute current peak: 10 Ampere
- Pointing accuracy*: < 12? RMS with Pointingfile
- Tracking accuracy*: 0,35" RMS in 5 Minutes
- Encoder resolution: 0,02" on the axis
- Polar adjust Client specific pier
- Moving speed: 13°/Sec
- Counterweight shaft: 80 mm high grade steel
- Counteweights included: 2 pieces high grade steel 1x16 kg and 1x 34kg, diameter 245 mm
- Laser for polar align (DDM85-L) Integrated into the axis
- USB connection on the mounts 3
- Remote cabable
- Controll Software Autoslew ASCOM compatible
- Pointing model calculates all repetable faults
- Extremly accurate tracking without external guiding
- Very accurate Positioning
- Fast but accurate polar adjustment
- Automated motortuning
- Homeposition
- 2 Parkpositions
- Set limits even without pointing
- ASA Software Sequence Auto created pointing models
- MLPT for local pointing models
CCD camera FLI Proline 16803:
- Pixels: 4096?4096
- Pixel Size: 9 ?m
- Full Well Capacity: 100,000 e-
- Sensor Diagonal: 52.1 mm
- Video Size (inch): 3.3
- Anti Blooming: > 100X saturation exposure
- Color Options: Monochrome
- CCD Type: Front Illuminated
- CCD Grades: Standard
- Digitization Speed: 1 MHz, 8 MHz
- Typical System Noise: 10e- 1 MHz; 14-e 8 MHz
- Typical Maximum Cooling: 55?C Below Ambient
- Typical Dark Current: <0.005 e-/pixel/sec ?33?C
- Non linearity: <1%
- Available Shutters: 63.5 mm
- All ProLine Cameras
- Housing Dimensions: 6.2?6.2?3.8 (157.48?157.48?96.52)
- Focal Plane to Faceplate: 21.3 mm (optical)
- Weight: 5.6 lbs. (Liquid Cooled — 4.6 lbs.)
- Interface: USB 2.0
- Temperature Stability: 0.1?C
- Remote Triggering: Standard
- Shutter MTBF: 1,000,000
- Power: 12V (100-240V AC to 12V DC power supply included).
- With TEC off: <1A. TEC at 100%: 4.4A. (Optional Electromechanical Shutter open: 4A pulse for 100 msec. Shutter held open, add 0.22A.)
- Environment: -30?C — 45?C | 10% — 90% Relative Humidity
Ten Position Dual Color Filter Wheel:
- Number of Filter Wheels: Two
- Filter Positions: Eight + Two Open Positions
- Recommended Filter Size (+/- 0.125mm): 50 mm square
- Filter Thickness Range: 1.0 - 5.0 mm
- Overall Thickness (less motor): 27.9 mm
- Camera Side Connection: 3.43" ZTA
- Optical Side Connection: 3.43" ZTA
- Internal Wheel Material: Aluminum
- Interface: USB
- Power: 12V
- Weight: 4.3 lbs (1.95 kg)
Current telescope status:
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