21064 Celestron Astromaster 90EQ Telescope
NOTE: Actual shipping fee is calculated once order is booked for shipping and will be shouldered by the customer.
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.
SPECIFICATIONS
| Aperture (mm) | 90 mm (3.54 in) |
| Apparent Field of View | 1 " |
| Finderscope | Built-on StarPointer |
| Focal Length | 1000 mm (39 in) |
| Focal Length of Eyepiece 1 ... | 20 mm (0.79 in) |
| Focal Length of Eyepiece 2 ... | 10 mm (0.39 in) |
| Focal Ratio | 11 |
| Highest Useful Magnification | 213 x |
| Light Gathering Power (Comp... | 165 x |
| Limiting Stellar Magnitude | 12.3 |
| Linear Field of View (@1000... | 53 ft (16 m) |
| Lowest Useful Magnification | 13 x |
| Magnification of Eyepiece 1 | 50 x |
| Magnification of Eyepiece 2 | 100 x |
| Mount Info: | N.A. |
| Mount Type | CG-3 Equatorial |
| Optical Coatings | Multi Coated |
| Optical Design | Refractor |
| Optical Tube Info: | N.A. |
| Optical Tube Length | 36 in (914 mm) |
| Resolution (Dawes) | 1.29 arc seconds |
| Resolution (Rayleigh) | 1.55 arc seconds |
| Star Diagonal | Erect Image Diagonal - 1.25" |
| Tripod | 1.25" steel tube legs |