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 Design

Newtonian Reflector

Aperture (mm)

114 mm (4.49 in)

Focal Length

1000 mm (39 in)

Focal Ratio


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


Built-on StarPointer

Mount Type

CG-2 Equatorial


1.25" steel tube legs

Highest Useful Magnification

269 x

Lowest Useful Magnification

16 x

Limiting Stellar Magnitude


Resolution (Rayleigh)

1.22 arc seconds

Resolution (Dawes)

1.02 arc seconds

Light Gathering Power (Compared to human eye)

265 x

Apparent Field of View

1 °

Linear Field of View (@1000 yds)

53 ft (16 m)

Optical Coatings


Optical Tube Length

18 in (457 mm)


2-year Telescope Warranty


  • Model: C/31042
  • Shipping Weight: 17lbs
  • 7 Units in Stock
  • Manufactured by: Celestron

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This product was added to our catalog on Tuesday 20 September, 2016.

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