Optical Design |
Modified Cassegrain Reflector |
Aperture |
260mm |
Focal Length |
3000mm |
Focal Ratio |
f/11.5 |
Coating |
DiElectric Coated |
Resolving Power |
.45 arc sec |
Limiting Magnitude |
13.8 |
Light Gathering Power |
1380x |
Adapter Thread |
60mm/50.8mm |
Astrophotography |
Prime Focus, Eyepiece Projection & Afocal Imaging |
Visual Back |
Compression Ring |
Optical Tube Length |
26.7” (680mm) |
Optical Tube Diameter |
12” (304mm) |
Optical Tube Weight |
22 lb |
Mount |
Sphinx SXD Equatorial Mount |
Tripod |
HAL130 Tripod |
Tripod Weight |
12 lb |
Mount Weight |
19.4 lb |
Counterweights |
4.2 lb (1.9 kg) and 8.15 lb (3.7kg) |
Mount Dimensions |
36cm x 12cm x 36cm |
Hand Controller |
STAR BOOK |
Load Capacity |
50 lbs |
Alignment Procedure |
4 Star |
Database |
22,700 Object (Upgradeable) |
Power Requirements |
DC 12 volts, 0.4 to 1.7 amperes |
RA Slow Motion Axis |
180 tooth wheel gear – whole circle movement |
DEC Slow Motion Axis |
180 tooth wheel gear – whole circle movement |
RA & DEC Worm Wheel |
Steel |
RA Coordinate Display |
STAR BOOK Full Color LCD screen ; 0.1 min increments |
DEC Coordinate Display |
STAR BOOK Full Color LCD screen ; 1.0 are min. sec increments |
Polar Axis Scope |
6x20mm SX Polar Axis Scope |
Altitude Adjustment |
0 to 70 ° (Fine adj. with tangent screw +/-15°, 3 step elevator |
Azimuth Adjustment |
Double screw fine adjustment |
Motors |
Built in |
Accessories |
7x50mm Finder; Finder Bracket (short); Flip Mirror; NLV25mm Eyepiece |