$ 359.95
Celestron SKU: 21064 | Helix SKU: CT21064
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.
| Optical Tube Info: | |
|---|---|
| Optical Design | Refractor |
| Aperture (mm) | 90 mm (3.54 in) |
| Focal Length | 1000 mm (39 in) |
| Focal Ratio | 11 |
| Focal Length of Eyepiece 1 (mm) | 20 mm (0.79 in) |
| Magnification of Eyepiece 1 | 50 x |
| Focal Length of Eyepiece 2 (mm) | 10 mm (0.39 in) |
| Magnification of Eyepiece 2 | 100 x |
| Finderscope | Built-on StarPointer |
| Star Diagonal | Erect Image Diagonal - 1.25" |
| Mount Info: | |
| Mount Type | CG-3 Equatorial |
| Tripod | 1.25" steel tube legs |
| Highest Useful Magnification | 213 x |
| Lowest Useful Magnification | 13 x |
| Limiting Stellar Magnitude | 12.3 |
| Resolution (Rayleigh) | 1.55 arc seconds |
| Resolution (Dawes) | 1.29 arc seconds |
| Light Gathering Power (Compared to human eye) | 165 x |
| Apparent Field of View | 1 ° |
| Linear Field of View (@1000 yds) | 53 ft (16 m) |
| Optical Coatings | Multi Coated |
| Optical Tube Length | 36 in (914 mm) |
| Warranty | 2-year Telescope Warranty |
$ 109.95
Celestron SKU: 21073 | Helix SKU: CT21073
Looking for a portable and easy to assemble telescope for celestial viewing? Then the AstroMaster Series is just for you! The AstroMaster Series produces bright, clear images of the Moon and planets. Easily observe the belts and moons of Jupiter and the rings of Saturn with every one of these fine instruments. For breathtaking views of brighter deepspace objects like galaxies and nebulae, we recommend the larger aperture and light-gathering ability of the Newtonian Reflector.
| Aperture (mm) | 60 mm (2.36 in) |
| Apparent Field of View | 1.7 " |
| Finderscope | Built-on StarPointer |
| Focal Length | 700 mm (28 in) |
| Focal Length of Eyepiece 1 ... | 20 mm (0.79 in) |
| Focal Length of Eyepiece 2 ... | 10 mm (0.39 in) |
| Focal Ratio | 12 |
| Highest Useful Magnification | 142 x |
| Light Gathering Power (Comp... | 73 x |
| Limiting Stellar Magnitude | 11.4 |
| Linear Field of View (@1000... | 89 ft (27 m) |
| Lowest Useful Magnification | 8.57 x |
| Magnification of Eyepiece 1 | 35 x |
| Magnification of Eyepiece 2 | 70 x |
| Mount Info: | N.A. |
| Mount Type | Altazimuth |
| Optical Coatings | Fully-Coated |
| Optical Design | Refractor |
| Optical Tube Info: | N.A. |
| Optical Tube Length | 28 in (711 mm) |
| Resolution (Dawes) | 1.93 arc seconds |
| Resolution (Rayleigh) | 2.32 arc seconds |
| Telescope Type | Manual |
| Total Telescope Kit Weight | 13 lbs (5.9 kg) |
| Tripod | 1" steel tubes |
| Warranty | 2-year Telescope Warranty |