Instruction manual

Technical Specifications78
TECHNICAL SPECIFICATIONS
Optical Tube Design Schmidt-Cassegrain
Aperture: 8” (203mm)
Focal Length: 80” (2032mm)
F/ratio: 10
Highest Useful Magnification: 480x
Lowest Useful Magnification: 29x
Resolution .68 arcseconds
Photographic Resolution: 182 lines/mm
Light Gathering Power: 842x the unaided eye
Back Focus 18” ± 5”
Near Focus with Eyepiece: ~25’
Near Focus with Camera: ~25’ (Using the Radial Guider)
Optical Tube Length: 16”
Optical Tube Diameter 9”
R.A. Setting Circle Diameter Northern
Hemisphere:
6
3
/
4
” (Celestar 8 and Celestar 8 Computerized)
7
3
/
4
” (Celestar Deluxe 8 and Celestar Deluxe 8 Computerized)
R.A. Setting Circle Diameter Southern
Hemisphere:
7
3
/
4
” (Celestar 8 and Celestar 8 Computerized)
8
3
/
4
” (Celestar Deluxe 8 and Celestar Deluxe 8 Computerized)
DEC. Setting Circle Diameter: 4”
DEC. Slow Motion Resolution 6 turns per degree
DEC Slow Motion Maximum Angle 10 degrees
Weight of Tube, Drivebase, and Forks 22 lb. (Celestar 8 and Celestar 8 Computerized)
27 lb. (Celestar Deluxe 8 and Celestar Deluxe 8 Computerized)
Weight of Wedgpod (Celestar 8) 15 lb.
Weight of Wedge (Celestar Deluxe 8) 4 lb.
Weight of Tripod (Celestar Deluxe 8) 19 lb.