Celestron AstroMaster 90EQ 90mm f/11 Refractor Telescope

Celestron AstroMaster 90EQ 90mm f/11 Refractor Telescope

Celestron AstroMaster 90EQ 90mm f/11 Refractor Telescope

B&H # CEAM90EQ MFR # 21064
Special Order
Expected availability: 7-14 business days

Includes Free

Value: $12.95

Product Highlights

  • 90mm Aperture Refractor OTA
  • 1000mm Focal Length, f/11 Focal Ratio
  • Fully Multi-Coated Optics
  • 1.25" Focuser, 10mm and 20mm Eyepieces
  • CG-3 Manual German Equatorial Mount
  • Dual-Axis Slow Motion Cables
  • 90° Erect-Image Diagonal
  • Permanently-Mounted Red-Dot Finder
  • 1.25" Stainless Steel Tripod with Tray
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Mount: Manual German Equatorial

Manual Alt-Azimuth

Special Order

Manual German Equatorial

Accessories: Standard Accessories

Deluxe Mars Observation Kit

Not available with current selections

Mars Observation Kit

Not available with current selections

Moon Observation Kit

Not available with current selections

Smartphone Digiscoping Adapter

Not available with current selections

Standard Accessories

Aperture: 90mm, f/11

60mm f/12

Not available with current selections

70mm f/10

Not available with current selections

70mm, f/13 80mm f/11

Not available with current selections

90mm, f/11
$0.00 Tax Collected Outside NY and NJ

You Pay: $239.00

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Celestron AstroMaster 90 EQ overview

  • 1Description

Designed as a capable and portable starter-scope, the Celestron AstroMaster 90EQ 90mm f/11 Refractor Telescope is a complete observational platform for making detailed observations of the Moon, viewing planets, or comet-hunting. Its manual equatorial mount, when properly polar aligned, can easily track objects using the slow-motion cables with reduced vibrations, and easy-to-read setting circles aid in speeding up celestial navigation to known coordinates. 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 a range of 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 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 equatorial
  • Locking altitude adjustment screw
  • Etched declination dial
  • Dual-axis slow motion cables enables precise adjustments with reduced vibrations
  • Two counterweights and counterweight bar allows proper balancing
  • 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: 050234210645
In the Box
Celestron AstroMaster 90EQ 90mm f/11 Refractor Telescope
  • StarPointer Finderscope
  • 10mm Eyepiece
  • 20mm Eyepiece
  • 90° Erect-Image Diagonal
  • 2 x Counterweights
  • Counterweight Shaft
  • Tripod and Accessory Tray
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Celestron AstroMaster 90 EQ specs

    Optical Tube Assembly
    Optical Design Achromatic Refractor
    Aperture Not Specified by Manufacturer
    Focal Length 1000 mm
    Focal Ratio f/11.1
    Resolution Not Specified by Manufacturer
    Focuser Not Specified by Manufacturer
    Eyepiece Barrel Diameter 1.25"
    Diagonal Not Specified by Manufacturer
    Finderscope Not Specified by Manufacturer
    Mounting System Not Specified by Manufacturer
    Optical Tube Dimensions Not Specified by Manufacturer
    Mount
    Type German Equatorial
    GoTo Capability No
    Tripod
    Material of Tripod Stainless Steel
    General
    Weight 23.0 lb / 10.5 kg
    Packaging Info
    Package Weight 33.0 lb
    Box Dimensions (LxWxH) 43.2 x 15.0 x 10.0"

    Celestron AstroMaster 90 EQ reviews

    AstroMaster 90EQ 90mm f/11 Refractor Telescope is rated 4.3 out of 5 by 3.
    Rated 5 out of 5 by from Excellent Great telescope. Great customer service. I called cause I was waiting for my telecope and wanted it before Christmas. There was a hold up w the infrared attachment. It was immediately shipped. Great service. Thank you.
    Date published: 2015-12-27
    Rated 3 out of 5 by from good product, but hard for set up. not for beginers. no clear Construction
    Date published: 2010-08-11
    Rated 5 out of 5 by from Good looking Good looking
    Date published: 2014-07-26
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    Celestron AstroMaster 90 EQ Q&A

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