Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope

BH #CEAM90AZ • MFR #21063
Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope
Key Features
  • 90mm Aperture Refractor OTA
  • 1000mm Focal Length, f/11.1 Focal Ratio
  • Fully Multi-Coated Optics
  • 1.25" Focuser, 10mm and 20mm Eyepieces
Designed as a capable and portable starter-scope, the Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope is a complete observational platform for making detailed observations of the Moon, planets, or comet-hunting. Its manual alt-azimuth mount's locking altitude clutch and adjustable pan-axis tension knob allows users to easily track objects using the locking pan handle with reduced vibrations. The entire rig assembles and breaks down without the need for tools, so users can set up fast and get observing sooner.
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Celestron 90AZ Overview

  • 1Description
  • 2Optical Tube
  • 3Mount and Tripod
  • 4Included Accessories

Designed as a capable and portable starter-scope, the Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope is a complete observational platform for making detailed observations of the Moon, planets, or comet-hunting. Its manual alt-azimuth mount's locking altitude clutch and adjustable pan-axis tension knob allows users to easily track objects using the locking pan handle with reduced vibrations. The entire rig assembles and breaks down without the need for tools, so users can set up fast and get observing sooner.

This version of the AstroMaster comes with two eyepieces that yield low and medium magnifications, and a 90° diagonal that sports an integrated erecting prism to correct images and allow the scope to be used as a conventional spotting scope for terrestrial use. The diagonal also places the user's head in a more comfortable position, especially when the OTA is pointed at or near the zenith. An adjustable-height stainless steel tripod supports the mount and optical tube, and comes with a center tray that conveniently holds accessories while improving stability and reducing vibrations.

Optical Tube
  • 90mm aperture
  • f/11.1 focal ratio
  • 1000mm focal length
  • Refractor-style optical path
  • Fully multi-coated optics improve light transmission, color rendition, and contrast
  • Resolution: 1.55 arcsec (Rayleigh); 1.29 arcsec (Dawes)
  • 1.25" rack-and-pinion focuser
  • Dovetail mounting plate
Mount and Tripod
    Mount:
  • Manual alt-azimuth
  • Locking control handle enables precise adjustments with reduced vibrations
  • Manual base clutch locks mount in position
  • Adjustable pan tension ensures smooth movement while tracking objects
  • Dovetail saddle accepts OTA mounting plate and allows for precise balancing
    Tripod:
  • 1.25" tubular stainless steel legs
  • Adjustable height to accommodate a variety of users and observing positions
  • Spiked feet to provide stability in rough or soft terrain
  • Center tray adds stability and vibration-reduction
Included Accessories
    Eyepieces:
  • 1.25" diameter barrel
  • Accepts most astronomical eyepiece filters
  • 10mm focal length produces 100x magnification
  • 20mm focal length yields 50x power
    Diagonal:
  • 90° angle places head in comfortable viewing position, especially when aimed at or near the zenith
  • Integrated erecting prism corrects image for terrestrial viewing as a conventional spotting scope
  • 1.25" snout and eyepiece holder fits and accepts the most common sized focusers and accessories
    Finder:
  • Permanently-mounted in-place
  • Unmagnified view ensures easy alignment and fast star-hopping navigation
  • Red illuminated center aiming dot is easy to see without obstructing small or dim objects
UPC: 050234210638

Celestron 90AZ Specs

Optical Design
Refractor
Aperture
90 mm
Focal Length
1000mm
Focal Ratio
f/11.1
Eyepiece Barrel Diameter
1.25"
Diagonal
90° erect-image
1.25" snout and eyepiece holder
Finderscope
StarPointer red-dot
Tripod
1.25" steel tube legs
Mount Type
Manual alt-azimuth
GoTo System
None
Power Source
None
Optical Tube Dimensions
36.0" / 91.4 cm
Weight
Not specified by manufacturer
Packaging Info
Package Weight
21 lb
Box Dimensions (LxWxH)
42 x 15 x 9.5"

Celestron 90AZ Reviews

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