CELESTRON ASTROMASTER 90EQ
Description :
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.
AstroMaster 90EQ - General Features :
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.
AstroMaster 90EQ - General Features :
- Quick and easy no-tool setup
- Permanently mounted StarPointer
- Erect image optics - Ideal for terrestrial and astronomical use
- Quick release dovetail attachment - no tool setup
- German Equatorial mount with Setting circles - to accurately locate and track sky objects
- Rugged pre-assembled tripod with 1.25" steel tube legs - Provides a rigid and stable platform
- All coated glass optics for clear, crisp images
- Deluxe accessory tray for convenient storage of accessories
- "The Sky®" Level 1 planetarium software with 10,000 object database and enhanced images
Specification :
| Optical Design : | Refractor |
| Aperture (mm) : | 90 mm (3.54 in) |
| Focal Length (mm) : | 1000 mm (39 in) |
| Focal Ratio : | 11 |
| Eyepiece 1 (mm) : | 20 mm (0.79 in) |
| Magnification 1 : | 50 x |
| Eyepiece 2 (mm) : | 10 mm (0.39 in) |
| Magnification 2 : | 100 x |
| Finderscope : | Built-on StarPointer |
| Star Diagonal : | Erect Image Diagonal - 1.25" |
| Mount : | CG-3 Equatorial |
| Tripod : | 1.25" steel tube legs |
| Weight (lbs) : | 27 lbs (12 kg) |
| 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 : | 165 x |
| Angular Field of View (deg) | 1 ° |
| Linear Field of View (@1000 yds) : | 53 ft (16 m) |
| Optical Coatings : | Multi Coated |
| Optical Tube Length : | 36 in (914 mm) |
| Tube Attachment : | Dovetail Bar |
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