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The Celestron AstroMaster 130EQ Reflector - 130mm is a Newtonian Reflector perfect for terrestrial and celestial viewing. Designed for near and deep-sky observation with a fast focal ratio for astrophotography/imaging, it features a 650mm focal length and an oversized parabolic mirror that produce detailed images of the Moon, clear views of the planets, and the ability to resolve distant objects such as nebulae and galaxies.
The optics is outfitted with a 1.25 rack-and-pinion focuser and two eyepieces to get new users started: a 10mm that yields 65x power and a 20mm for a 32.5x magnification. The 20mm eyepiece integrates an erecting system to correct images horizontally and vertically to allow easy terrestrial use. An unmagnified red-dot finder is also included to help set-up, align and navigate easier.
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 |
Secondary Mirror Obstruction by Diameter | 34% |
Secondary Mirror Obstruction by Area | 11% |
Optical Tube Length | 610mm (24") |
Dovetail | CG-5 Dovetail bar |
Mount Type | CG-3 Equatorial |
Height adjustment range (includes mount and tripod) | 812.8mm - 1295.4mm (32" - 51") |
Tripod Leg Diameter | 31.75mm |
Accessory Tray | Yes |
Tripod Weight | 3.44 kg |
Slew Speeds | Manual |
Dovetail Compatibility | CG-5 saddle plate |
Free Shipping | No |
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