Για δες εδω! Παντα η JMI ειχε τη λυση... το θυμαμαι απο πολυ παλια The Nightrider II Equatorial Platform allows a Dobsonian (up to a 16" aperture) to track the stars. Telescope Size: Up to 16" Aperture Tracking Time: 60 minutes Weight Limit: 180 lbs Latitude Range: ±20–52.5° (usable to 55°) Table Size: 24" x 24" x 24" Triangle Table Height: 5½" Table Weight: 34 lbs Hand Control: Dual axis (R.A. and Dec.), forward and reverse slewing, declination adjustment, adjustable tracking speed (resets at power off), built-in chart-illuminator LED Power Requirements: 9-12v DC 100mA, 8 size C batteries Battery Life: 35-40 Hours (with Alkaline batteries) Shipping Box Size: 25-1/2" x 24" x 10" ? Shipping Weight: 39 ? Τhe Nightrider I Equatorial Platform allows a Dobsonian (up to a 13" aperture) to track the stars. Telescope Size: Up to 13" Aperture Tracking Time: 50 minutes Weight Limit: 90 lbs Latitude Range: ±0–55° Table Size: 24" x 24" x 24" Triangle Table Height: 7" Table Weight: 25 lbs Hand Control: Single axis (R.A.), forward and reverse slewing, adjustable tracking speed (resets at power off), built-in chart-illuminator LED Power Requirements: 9-12v DC 100mA, 8 size D batteries Battery Life: 80-100 Hours (with Alkaline batteries) Shipping Box Size: 25-1/2" x 24" x 10" Shipping Weight: 30 lbs ?