Astromaster 90x1000mm Refractor kit AZ mount

CelestronSKU: 21063
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Sale price$459.99
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  • Description

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
  • Pan handle Alt-Az control with clutch - for smooth and accurate pointing
  • 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

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.

Specifications

Optical Design

Refractor

Aperture (mm)

90 mm (3.54 in)

Focal Length

1000 mm (39 in)

Formula:Focal Ratio

11

Focal Length of Eyepiece 1 (mm)

20 mm (0.79 in)

Formula:Magnification of Eyepiece 1

50 x

Focal Length of Eyepiece 2 (mm)

10 mm (0.39 in)

Formula:Magnification of Eyepiece 2

100 x

Finderscope

Built-on StarPointer

Star Diagonal

Erect Image Diagonal - 1.25"

Mount Type

Altazimuth

Tripod

1.25" steel tube legs

Formula:Highest Useful Magnification

213 x

Formula:Lowest Useful Magnification

13 x

Formula:Limiting Stellar Magnitude

12.3

Formula:Resolution (Rayleigh)

1.55 arc seconds

Formula:Resolution (Dawes)

1.29 arc seconds

Formula:Light Gathering Power (Compared to human eye)

165 x

Apparent Field of View

1 °

Linear Field of View (@1000 yds)

53 ft (16 m)

Optical Coatings

Multi Coated

Optical Tube Length

36 in (914 mm)

Warranty

2-year Telescope Warranty

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