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SKU #: CES1200

Celestron Cosmos 90GT WiFi Refractor Telescope

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Celestron Cosmos 90GT WiFi Refractor Telescope

Interact with the night sky in a whole new way using the Cosmos 90GT Wi-Fi telescope and your smartphone or tablet. Celestron new Cosmos Celestron navigator mobile app replaces the traditional telescope hand control for a 100% wireless experience. Just hold your smart device up to the night sky. When you find an object you'd like to view, tap the screen. Your Cosmos 90GT automatically slews to the object, while the screen displays information about it. It's never been more fun to explore the universe. The first WiFi telescope commercially available, the Cosmos 90GT creates its own wireless connection, so it can communicate with your device even in remote locations where WiFi or cellular networks aren't available. Getting ready to observe is quick and painless thanks to Celestron's award-winning skyalign technology. Center any three bright objects in the eyepiece, and your telescope calculates its position. You can even generate a aky tour of all the best celestial objects to view based on your exact time and location. Trusted Celestron optics innovative WiFi technology powers the Cosmos 90GT, but it's the optics inside the telescope tube that make it a Celestron. For over 50 years, we've led the industry in optical technology and we put that experience into the Cosmos 90GT. This 90 mm refractor with fully coated optics offers dazzling views of craters on the moon, the rings of saturn, the great red spot on Jupiter, the orion nebula, the Hercules globular cluster and so much more. Inspired by Cosmos a spacetime odyssey Cosmos a spacetime odyssey and Celestron are changing how we experience science and astronomy. Travel through space aboard the spaceship of the imagination (SOTI) when Cosmos airs this spring on FOX and national geographic channel. Then, take your own voyage through the universe with your Cosmos 90GT. The telescope's fork arm features a 3D SOTI design with LED's that illuminate when your telescope is connected via WiFi. Another symbol of Cosmos, the eye nebula, adorns the refractor tube.


  • Includes starpointer finderscope, 2 kellner eyepieces, mirror star diagonal, free planetarium app, and cosmic calendar poster
  • First WiFi operated telescope for amateur astronomy
  • Refractor with fully coated glass optics
  • Choose the object wish to view from navigator database of over 120,000 celestial objects
  • SOTI lights up when telescope is connected via WiFi
  • Newly designed accessory tray storage for eyepieces along with rubber-lined tray for smartphone or small tablet
  • Control telescope with the free navigator app for iPhone, iPad, and android devices
  • Special edition cosmos eye nebula badging with 3D spaceship of the imagination (SOTI) design on fork arm
  • Refractor size: 90 mm
  • Cosmos collection


  • Overall: 56" H x 36" W x 32" D
  • Overall Product Weight: 20lbs

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Celestron Cosmos 90GT WiFi Refractor Telescope

Weights & Dimensions

  • Overall: 56" H x 36" W x 32" D
  • Overall Product Weight: 20lbs


Telescope Type: RefractingColor: Black
Usage: Nebulae; Moon; Galaxies/Star clusterAperture Size: 90 Millimeters
GoTo Technology: YesCountry of Manufacture: China

About the Manufacturer

Throughout the world, Celestron telescopes have become the "telescope of choice" for the consumer that can differentiate between brands. Major colleges and universities worldwide use Celestron telescopes in their astronomy programs. Moreover, its solid and esteemed reputation in the scientific community has reached NASA, who selected the Celestron C5 telescope as the telescope to be taken on several space shuttle research missions.

Celestron Cosmos 90GT WiFi Refractor Telescope

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Needs better instructions.

Kath from ILAZ– Verified Buyer

Generally works as described. However instructions are very hard to follow. MAKE SURE YOU DO LOCATION AND TIME FIRST. (When ipad asks you if you want to do location, at the very beginning, say "yes". If you miss this, it's torture to set up). It's fun at night. However, if you want to use it for mountain viewing as well, it's very difficult because you can't manually move the telescope side to side, you have to use the iPad buttons. Which seem hyper sensitive until you figure out that "rate" means "speed". And, then, it's painfully slow. But, it's a pain to push buttons on an iPad while staring through a telescope. But if you only want it for night time star gazing, it does what it says, but you have to be very precise when setting up the 3-star connection... And again, the instructions could be much clearer. Also, you have to redo the 3 star thing every time you use it, unless you put in EXACTLY the same spot. But, once you figure out how to do it (trial and error, not instructions) it doesn't take that long to do.

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Description: Includes red dot finderscope, 2 kellner eyepieces, mirror star diagonal, free planetarium app, and cosmic calendar poster



Cosmos 90GT WiFi Refractor Telescope is also sometimes listed under the following manufacturer numbers: 22094