Celestron Cosmos 90GT Telescope with Finder & Wi-Fi Aluminum Tripod Kelner Eyepieces 13x-213x Magnification Multi Coated 37.2" Optical Tube

Priced: $399.95
Visit our Daily Deals for great products at low prices.
Celestron Cosmos 90GT Telescope with Finder & Wi-Fi Aluminum Tripod Kelner Eyepieces 13x-213x Magnification Multi Coated 37.2" Optical Tube -

The Celestron Cosmos 90GT Telescope with Wi-Fi features a refractor-style optical design with a 90mm fully coated objective lens and a 910mm focal length, that can be used to view the Moon, planets and bright deep sky objects. Control of the telescope's motorized mount comes from a free downloadable app for Android and iOS devices. Open the app and connect directly to the telescope over Wi-Fi without an existing network or router. The app not only controls the scope, it tells you what is available to see, provides additional information on what you're viewing and can give you a guided tour based on when and where you're viewing.
A two-section aluminum tripod provides a steady and sturdy platform for viewing, with an accessory tray to hold extra eyepieces and the smart phone or tablet. Two included Kelner eyepieces produce 91x and 36x magnification and accept most 1.25" filters. A permanently mounted red-dot finderscope is provided to make finding your subject easier and a 90deg. star-diagonal makes viewing more comfortable.


  • Kelner Eyepieces-Fold-down eyecups


  • Kelner Eyepieces-Included 90deg. star diagonal for more comfortable viewing


  • Mount and Tripod-Spikes at the end of the legs provide a sure footing
  • Wi-Fi Connectivity-Connect your smart device to the telescope via direct Wi-Fi connection, no router required
  • Kelner Eyepieces-Multi-coated glass
  • Mount and Tripod-Aluminum two-section adjustable-height steel tripod with accessory tray
  • Achromatic glass that limits chromatic aberration
  • Kelner Eyepieces-1.25" diameter barrels accept most filters
  • SkyAlign Technology-Point the telescope at three bright objects in the sky and the telescope does the rest
  • Fully multi-coated lenses
  • Wi-Fi Connectivity-Tap the objects on the screen and the telescope moves to the object
  • SkyAlign Technology-Enter day, time and location
  • Mount and Tripod-Accessory tray with rubberized smart phone or tablet holder
  • SkyAlign Technology-Alignment takes minutes, with minimal effort or experience
  • Mount and Tripod-Motorized, computer-controlled fork mount
  • Wi-Fi Connectivity-App uses the device's camera and compass to determine location and what is available to see
  • Kelner Eyepieces-10mm eyepiece produces 91x magnification
  • Wi-Fi Connectivity-Experience additional audio and video content about what you're looking at and sky tours based on the time of year and your location
  • Mount and Tripod-No tools required to set up mount and tripod
  • SkyAlign Technology-No need to point it North or to perfectly level the scope
  • Wi-Fi Connectivity-Download free Celestron Navigator app for Android or iOS devices
Want it cheaper? Set your own price.
Enter the price you want to pay and we'll email or text you if we find a store that will sell it for that amount:
Price: $
Your email:
Cell number: (optional, for text message)
Learn how offers work...
Accessory Tray:Includes rubberized smartphone or tablet holder
Alignment Procedures:SkyAlign, 3-Star Align, Solar System Align
Communication Ports:Aux port for optional hand control
Database:Over 120,000 objects including 220 of the best deep sky and solar system objects
Focal Length:910mm
Focal Length of Eyepiece 1:25mm
Focal Length of Eyepiece 2:10mm
Focal Ratio:10.1
Highest Useful Magnification:213x
Light Gathering Power:165x (Compared to human eye)
Limiting Stellar Magnitude:12.3
Lowest Useful Magnification:13x
Magnification of Eyepiece 1:36x
Magnification of Eyepiece 2:91x
Mount Type:Single Fork Arm Altazimuth
Optical Coatings:Fully Coated
Optical Design:Refractor
Optical Tube Length:37.2" / 94.5cm
Resolution (Dawes):1.29 arc seconds arc seconds
Resolution (Rayleigh):1.54 arc seconds arc seconds
Slew Speeds:Up to 3 deg/second
Star Diagonal:1.25"
Tracking Rates:Sidereal, Solar and Lunar
Weight:Total Telescope Kit: 14.2lbs / 6.44kg

Related Categories:


Celestron Cosmos 90GT Telescope with Finder & Wi-Fi Aluminum Tripod Kelner Eyepieces 13x-213x Magnification Multi Coated 37.2" Optical Tube Review:

No reviews are available for this product.