Celestron Astromaster 90EQ Refractor Telescope
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If you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the Astromaster Series is for you. Each 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 this fine instrument. More
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Learn moreIf you're looking for a dual-purpose telescope appropriate for both terrestrial and celestial viewing, then the Astromaster Series is for you. Each 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 this fine instrument.
Key Features: Celestron Astromaster 90EQ Refractor Telescope
- 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 SkyX - First Light Edition" astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images
Additional Specification:
- Optical Design: Refractor
- Aperture: 90mm
- Focal Length: 1000mm
- Focal Ratio: 11
- Eyepiece 1: 20mm
- Magnification: 50x
- Eyepiece 2: 10mm
- Magnification: 100x
- Finderscope: Built-on StarPointer
- Mount: CG-3 Equatorial
- Tripod: 1.25" steel tube legs
- Highest Useful Magnification: 213x
- Lowest Useful Magnification: 13x
- Limiting Stellar Magnitude: 12.3
- Resolution (Rayleigh): 1.55 arc seconds
- Resolution (Dawes): 1.29 arc seconds
- Light Gathering Power 165x
- Angular Field of View (deg): 1°
- Linear Field of View: 16m
- Optical Coatings: Multi-Coated
- Optical Tube Length: 914mm
- Tube Attachment: Dovetail Bar
Product Specification
| Diagonal | Erect Image |
| Diameter [mm] | 90.0 |
| Eyepiece 1 | 10 mm |
| Eyepiece 2 | 20 mm |
| Finderscope | Red-Dot Finderscope |
| Focal Length [mm] | 1000 |
| Focal Ratio [f|] | 11.00 |
| Highest Practical Magnification [x] | 213 |
| Magnification With Eyepieces Supplied [x] | 50, 100 |
| Mount Type | Equatorial |
| Optical Design | Achromatic |
| Optical Tube Length [mm] | 914 |
| Power Source | NA |
| Tripod | 1.25 Inch Stainless Steel Pipe Tripod with Accessory Tray |
| Manufacturers Link | Celestron |