R.A. slow motion |
Worm and wheel gears with 180-tooth whole circle micro movement, 72mm in diameter, mode of brass |
DEC slow motion |
Worm and wheel gears with 180-tooth whole circle micro movement, 72mm in diameter, mode of brass |
Worm shaft gear |
9mm in diameter, made of brass |
R.A. axis |
40mm in diameter, made of carbon steel |
DEC axis |
35mm in diameter, made of carbon steel |
Counterweight bar |
20mm in diameter, retractable, made of stainless steel |
Number of bearings |
9 pieces |
R.A. display |
On-screen the STAR BOOK, 0.1 minute increments |
DEC display |
On-screen the STAR BOOK, 0.1 minute arc increments |
Polar axis scope |
(Preinstalled) 6×20mm, Field of view 8 degrees, 3-star alignment system, Variable illuminated reticle with auto turn-off, Brightness adjustable in 8 steps, Dark field illumination, Setting accuracy within 3 arc minutes |
Altitude adjustment |
Latitude adjustable between 0 degree and 70 degrees (divided in 3 zones and adjustable +/- 15 degrees per zone, for high, middle and low latitudes), latitude scale in 2 degrees increments, Fine adjustments with a tangent screw knob about 0.8 degrees per rotation |
Azimuth adjustment |
Fine adjustments with twin screw knobs about 1.2 degrees per rotation, adjustable range about +/- 7degrees |
Motor drive |
Pulse motors with micro-step motion control (250 pps) |
Star Chart Go-To |
Automatic Go-To slewing with STAR BOOK TEN, 1000× of sidereal rate at maximum slewing speed |
Photographic loading weight |
15kg / 33 lb (Maximum torque load : 375kg -cm at a point of 25cm from the place where the RA and DEC axes cross.) |
Power port |
DC 12V EIAJ RC5320A Class 4 |
Power supply |
Comes Cigarette-lighter plug cord (center pulse polarity) as standard accessory |
Working voltage |
DC 12V |
Electricity consumption |
0.45A to 2.5A |
Size |
360mm × 343mm × 128mm |
Weight |
9.2Kg / 20.3 lb (without counterweight) |
Counterweights |
1.9Kg × 1, 3.7kg × 1 / 4.2 lb × 1, 8.15 lb × 1 |