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21061 100-200, celestron, optics, Spotting & Telescopes NORTH RIVER OUTDOORS
21061 100-200, celestron, optics, Spotting & Telescopes NORTH RIVER OUTDOORS
$139.88

$191.95

Celestron AstroMaster 70AZ 45-90x Telescope

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Celestron AstroMaster 70AZ 45-90x Telescope

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.

Quick Overview

  • 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
  • “TheSkyX – First Light Edition” astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images

Optical Design Refractor
Aperture (mm) 70 mm (2.76 in)
Focal Length 900 mm (35 in)
Focal Ratio
Focal Length of Eyepiece 1 (mm) 20 mm (0.79 in)
Magnification of Eyepiece 1
Focal Length of Eyepiece 2 (mm) 10 mm (0.39 in)
Magnification of Eyepiece 2
Finderscope Built-on StarPointer
Star Diagonal Erect Image Diagonal - 1.25"
Mount Type Altazimuth
Tripod 1.25" steel tube legs
Highest Useful Magnification
Lowest Useful Magnification
Limiting Stellar Magnitude
Resolution (Rayleigh) 1.99 arc seconds
Resolution (Dawes) 1.66 arc seconds
Light Gathering Power (Compared to human eye)
Apparent Field of View
Linear Field of View (@1000 yds) 58 ft (18 m)
Optical Coatings Fully Coated
Optical Tube Length 36 in (914 mm)