Celestron SKU: 31051 | Helix SKU: CT31051
If you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the AstroMaster Series is for you. Each AstroMaster model is capable of giving correct views of land and sky.
The AstroMaster Series produce bright, clear images of the Moon and planets. It is easy to see the moons of Jupiter and the rings of Saturn with every one of these fine instruments. For views of the brighter deep space objects like galaxies and nebulae, we recommend the larger aperture and light gathering ability of the Newtonian reflectors.
This model includes the motor drive for automatic tracking.
|Aperture (mm)||130 mm (5.12 in)|
|Apparent Field of View||1.5 "|
|Focal Length||650 mm (26 in)|
|Focal Length of Eyepiece 1 ...||20 mm (0.79 in)|
|Focal Length of Eyepiece 2 ...||10 mm (0.39 in)|
|Highest Useful Magnification||307 x|
|Light Gathering Power (Comp...||345 x|
|Limiting Stellar Magnitude||13.1|
|Linear Field of View (@1000...||79 ft (24 m)|
|Lowest Useful Magnification||19 x|
|Magnification of Eyepiece 1||33 x|
|Magnification of Eyepiece 2||65 x|
|Mount Type||CG-3 Equatorial|
|Optical Design||Newtonian Reflector|
|Optical Tube Info:||N.A.|
|Optical Tube Length||24 in (610 mm)|
|Resolution (Dawes)||0.89 arc seconds|
|Resolution (Rayleigh)||1.07 arc seconds|
|Tripod||1.25" steel tube legs|
|Warranty||2-year Telescope Warranty|