Celestron NexStar 90 GT 90mm f/10 GoTo Refractor Telescope

Celestron NexStar 90 GT 90mm f/10 GoTo Refractor Telescope

Celestron NexStar 90 GT 90mm f/10 GoTo Refractor Telescope

B&H # CEN90GT MFR # 22095-3
Celestron NexStar 90 GT 90mm f/10 GoTo Refractor Telescope Scope


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Product Highlights

  • 90mm Doublet Refractor
  • 910mm Focal Length, f/10 Focal Ratio
  • Anti-Reflection Coated Optics
  • 1.25" Focuser, 4mm and 20mm Eyepieces
  • Single-Arm Motorized Alt-Az Mount
  • NexStar Hand Controller
  • 40,000+ Image Database
  • Alignment Aids with Automatic Tracking
  • 90° Star Diagonal / Red-Dot Finder
  • Adjustable-Height Aluminum Tripod
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Reg. Price: $399.95

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  • 1Description

Designed for beginners or as a simple grab-and-go option for more advanced astronomers, Celestron's NexStar 90 GT 90mm f/10 GoTo Refractor Telescope features a larger, but still easy-to-manage 90mmm aperture with a long 910mm focal length. This complete observation rig includes the optical tube assembly, the NexStar computer controller, a motorized mount, an aluminum tripod, two eyepieces, a 90° diagonal, and a red-dot finder. The rack-and-pinion focuser accepts the star diagonal that corrects images vertically for terrestrial use. The two eyepieces produce 46x and 228x magnifications to offer users a range of options for observing the Moon or planets, or to scan the sky for satellites, asteroids, or comets.

The OTA is mounted on a single-arm motorized alt-az mount. Guiding the mount is the NexStar computer hand controller. Packed with over 40,000 objects and flash updateable via the Internet, the NexStar is loaded with features to help users align and find objects in the night sky, including guided tours, automatic tracking rates for near and deep-sky objects, and multiple slew speeds. Supporting the OTA and mount is an aluminum adjustable height tripod. The entire rig assembles and breaks down without the need for tools, letting you set up faster and start observing sooner.

Optical Performance
  • 90mm aperture
  • f/10 focal ratio
  • 910mm focal length
  • Doublet refractor optical design
  • Anti-reflection coated optics improve light transmission, color rendition, and contrast
  • 1.25" rack-and-pinion focuser
NexStar Controller
  • Pre-loaded 40,000 object database
  • Multiple assisted-alignment systems: SkyAlign, Auto 2-Star, Auto 1-Star, 2-Star, Solar System
  • Automatic tracking for near and deep sky objects
  • Nine slew speeds: 1°/sec, 2°/sec, 3°/sec, 64x, 32x, 16x, 8x, 4x, 2x
  • Flash upgradeable operating system
  • LED-backlit interface buttons
  • RS-232 serial communication port
Mount and Tripod
  • Motorized single-arm alt-azimuth mount
  • Runs on eight user-supplied AA batteries
  • Quick-release base, OTA, accessory tray with rapid no-tool set up
  • Adjustable-height aluminum tripod
  • Spiked feet for steady footing in soft ground
Included Accessories
  • 1.25" barrel diameter
  • 4mm = 228x magnification
  • 20mm = 46x magnification
  • 90° angle puts user's head in a comfortable position
  • Vertically corrects image for terrestrial viewing
  • Unmagnified wide-field view for easier alignment and manual star-hopping navigation
  • Center aiming dot won't obscure small subjects
  • Variable intensity preserves night-adjusted vision
In the Box
Celestron NexStar 90 GT 90mm f/10 GoTo Refractor Telescope
  • 4mm 1.25" Eyepiece
  • 20mm 1.25" Eyepiece
  • 90° Diagonal
  • Red-Dot Finder
  • NexStar Controller
  • Aluminum Tripod
  • Limited Two-Year Warranty
  • Table of Contents
    • 1Description
    Optical Design Refractor
    Aperture 3.5" / 90 mm
    Focal Length 910 mm
    Focal Ratio f/10.1
    Eyepiece Barrel Diameter 1.25"
    Diagonal 90° star
    Finderscope Red-dot finder
    Tripod Adjustable height, aluminum
    Mount Type Motorized alt-az
    Power Source 8 x AA batteries
    Optical Tube Length 36.0" / 91.4 cm
    Weight Not specified by manufacturer
    Packaging Info
    Package Weight 24.4 lb
    Box Dimensions (LxWxH) 44.0 x 16.5 x 10.2"

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