Brand |
Celestron |
Optical Design: |
Newtonian Reflector |
Aperture: |
130mm (5.11") |
Focal Length: |
650mm (25.6") |
Focal Ratio: |
f/5 |
Focal Length of Eyepiece 1: |
20mm (.78") with built-in erect image corrector |
Magnification of Eyepiece 1: |
33x |
Focal Length of Eyepiece 2: |
10mm (.4") standard |
Magnification of Eyepiece 2: |
65x |
Barlow Lens: |
Not Included |
Finderscope: |
Built-on StarPointer™ red dot finderscope |
Star Diagonal: |
None |
Optical Tube: |
Aluminum |
Highest Useful Magnification: |
307x |
Lowest Useful Magnification: |
19x |
Limiting Stellar Magnitude: |
13.1 |
Resolution (Rayleigh): |
1.07 arc seconds |
Resolution (Dawes): |
.89 arc seconds |
Light Gathering Power (Compared to human eye): |
345x |
Secondary Mirror Obstruction: |
44mm (1.73") |
Secondary Mirror Obstruction by Diameter: |
34% |
Secondary Mirror Obstruction by Area: |
11% |
Optical Coatings: |
TBD |
Optical Tube Length: |
610mm (24") |
Optical Tube Diameter: |
TBD |
Optical Tube Weight: |
TBD |
Dovetail: |
CG-3 Dovetail bar |