Kaluston tekniset tiedot


Orion Optics UK ODK16, Optimised Dall-Kirkham peilikaukoputki 400 mm (16") halkaisijalla.
Primary mirror diameter 400mm 16"
Focal length 2720mm (f/6.8)
Tube Weight (inc.mount plate/dovetail) 36kg
Tube Diameter 450mm
Tube Length 820mm
BFD (Back FocalDistance) from cell face* 216mm
Tube Material Carbon fibre sandwich
Secondary Size 152mm
Mirror Cell Honeycombe CNC machined alum. cell
Focuser 3" Crayford with 10:1 reduction
Corrector Design Multi coated 3 lens
Flat Field Size >52mm
Spot Size on Axis 2.4µ
Spot Size at Field Edge 6.0µ
Mirror / Tube Cooling 3 Controllable fans. Heaters optional
Attachment Method CNC machined alum. dovetail with supports
   - Jalusta: ASA Direct Drive Mount DDM85 Standard
     Type of mount: German equatorial
      Loading capacity (only instrument): 65 kg
      Drive: Noiseless high torque direct drive motors in both axis
      100% backlash-free. Correction command of the software can be done within 0.1 arc second accuracy
      Pointing accuracy*: < 12" RMS with Pointingfile
      Tracking accuracy*: 0,35" RMS in 5 Minutes
      Encoder resolution: 0,02" on the axis
      Moving speed: 13°/Sec.
      USB connection on the mounts: 3
      Additional connections: Data (custom specific), power supply, fan for Astrographs
      Remote cabable: Yes
      Control Software Autoslew:
         -ASCOM compatible
         -Pointing model calculates all repetable faults
         -Extremly accurate tracking without external guiding
         -Very accurate Positioning
         -Real time correction of wind resistance
         -Fast but accurate polar adjustment
         -Automated motortuning
         -Set limits even without pointing
      ASA Software Sequence:
         -Auto created pointing models
         -MLPT - for local pointing models
         -Perfectly unguided exposures of up to 10 minutes and more
      Voltage: 12 V
      Amperage: 0,4-0,8 Ampere
      Absolute current peak: 10 Ampere
      Diameter of axis: 85mm hollow axis
      Bearing: 4 preloaded taper roller bearings 130/85 mm
      Weight of mount without counterweight shaft: 45,3 kg
      Counterweight shaft: 60 mm high grade steel

Dobsonkaukoputki 200 mm peilillä (SkyWatcher Skyliner-200P)
Diameter of Primary Mirror: 203mm
Telescope Focal Length: 1200mm (f/5.91)
Eyepieces Supplied (1.25"): 10mm & 25mm
Magnifications (with eyepieces supplied): x48 & x120
Highest Practical Power (Potential): x406
Dual-Fit 1.25"/2" Focuser
Parabolic Primary Mirror
0.5mm Ultra-Thin Secondary Mirror Supports
9x50 Finderscope
Direct SLR Camera Connection
Wooden Alt-Azimuth Mount with Accessory Tray
Dobsonkaukoputki 200 mm peilillä (Helios)
Vanhempi refraktori (linssi) n. 200 mm linssillä ja n. 2500 mm polttovälillä
Vanhempi Dobsonkaukoputki 300 mm peilillä (Odyssey 1)
Diameter of Primary Mirror: 13.1"
Telescope Focal Length: 1500mm (f/4.5)
Focuser: 1 ¼"
8x50mm finder scope


Canon 15x50 IS All Weather
Suurennus (x) 15
Linssin halkaisija (mm) 50
Lähtöpupilli (mm) 3.3
Todellinen näkökenttä 4,5°
Näennäinen näkökenttä 67.5° laajakulma
Correction Angle ±0.7°
Näkökenttä 1 000 metrissä 79
Lähin tarkennusetäisyys (m) 6
Silmäetäisyys,Eye Relief (mm) 15
Silmävälin säätöalue 58–76 mm
Prisma Porroprisma II
Kuvanvakain kyllä
Tasonkorjain kaksielementtinen tasonkorjain
UD-linssi (Ultra-low Dispersion) kyllä
Virtalähde – 2x AA-paristoa
Kumipinnoite kyllä
Vesitiivis kyllä (JIS-luokitus 4)
Monikerroksinen Super Spectra -pinnoite kyllä
Paino (ilman paristoja) 1 180 g

Muut laitteet

CCD Tähtikuvauskamera ATIK4000LE
Sensor Type: CCD - Kodak KAI 04022
Sensor size: 16.67mm x 16.05mm
Horizontal Resolution: 2048 pixels
Vertical Resolution: 2048 pixels
Pixel Size: 7.4 µM x 7.4 µM
ADC: 16 bit
Readout Noise: 11 e- typical value
Dark current: 0.01 electrons per sec at -20 degrees
Well depth: 40,000 electrons
Anti blooming: >1000x
Quantum Efficiency: 55%
Linearity: R squared test equal to 1
Interface: USB 2.0 High Speed
Power: 12v DC
Maximum Exposure Length: Unlimited
Minimum Exposure Length:1/1000 s
Guide Port: ST-4 compatible
Cooling: Single stage Peltier with ΔT=-33C Full temperature regulation.
Weight: 700g
CCD to front of camera distance: 18mm
Thread on front of camera: T-Thread (42x0.75)