|
Optical Design
|
Refractor
|
|
Aperture (mm)
|
70 mm
|
|
Focal Length
|
900 mm
|
|
Focal Ratio
|
13
|
|
Focal Length of Eyepiece 1 (mm)
|
20 mm
|
|
Magnification of Eyepiece 1
|
45 x
|
|
Focal Length of Eyepiece 2 (mm)
|
10 mm
|
|
Magnification of Eyepiece 2
|
90 x
|
|
Finderscope
|
Built-on StarPointer
|
|
Star Diagonal
|
Erect Image Diagonal – 1.25″
|
|
Mount Type
|
Altazimuth
|
|
Tripod
|
1.25″ steel tube legs
|
|
Lowest Useful Magnification
|
10 x
|
|
Limiting Stellar Magnitude
|
11.7
|
|
Resolution (Dawes)
|
1.66 arc seconds
|
|
Light Gathering Power (Compared to human eye)
|
100 x
|
|
Optical Coatings
|
Fully Coated
|
|
Optical Tube Length
|
914 mm
|
|
Warranty
|
2-year Telescope Warranty
|