Celestron StarSense AutoAlign Accessory

Celestron StarSense AutoAlign Accessory

Due to high demand and global product shortages due to the pandemic, please call for availability.

Unleash the power of your Celestron computerized telescope with the StarSense revolutionary self-alignment accessory. Making its first appearance in the award-winning SkyProdigy telescope, StarSense is now available for almost every Celestron computerized telescope.

Before StarSense, using a computerized telescope required a lengthy alignment process of finding and centering at least two bright stars in the telescope's eyepiece. But StarSense automatically aligns itself, no user input needed. With StarSense, you become an instant astronomer, even if you've never used a telescope before.

The StarSense accessory eliminates the need for a GPS sensor, compass and leveling sensors by utilizing star pattern recognition.

StarSense is not only compatible with all of Celestron's current computerized telescope models, but backwards compatible with many older models as well. (See compatibility list below.)

The StarSense Accessory includes a small digital camera that attaches to the telescope’s optical tube, along with the new StarSense hand controller which is more powerful than the NexStar and NexStar+ hand controls. Just set up the accessory, push the Align button on the hand controller, and StarSense starts capturing and comparing images of the night sky against its internal database of 40,000 celestial objects. In about three minutes, StarSense will gather enough information to triangulate its position and align itself. Then, press the Sky Tour button: StarSense will automatically slew to all the best stars, planets, galaxies, and more based on your exact time and location.

Even the most advanced telescope users will love using the affordable StarSense Accessory. StarSense replaces expensive software used for Advanced Mount Modeling, providing superior pointing accuracy from horizon to horizon. Users can add as many calibration stars as desired to give their telescope mount a new level of accuracy.

Users of equatorial mounts need to perform a polar alignment first, which is easy to do, thanks to Celestron's All-Star Polar Alignment built into the hand control.


  • Enables automatic alignment of your Celestron computerized telescope
  • Automatic alignment takes 3 minutes or less
  • Provides advanced mount modeling for extremely precise goto pointing accuracy
  • StarSense hand controller included
  • Easily attaches to the optical tube


  • Imaging sensor: Aptina MT9M034 1.2 Megapixel CMOS
  • Sensor resolution: 1280 x 960
  • Pixel size: 3.75µm x 3.75µm
  • Objective diameter: 20mm (.78")
  • Objective focal length: 40mm (1.6")
  • Focal Ratio: f/2
  • Number of objective lenses: 2 element
  • 32-bit processor with embedded Linux Operating System
  • Connections:
    • Aux port on telescope or port splitter
    • USB 2.0 port
  • USB port can be used for:
    • updating firmware
    • wide-field photography
    • autoguiding (possibly in the future, may require add-ons)
  • Celestron two year warranty

StarSense Hand control Specifications

  • 45,178 object database
  • LCD display: red backlit, 4 line, 18 character
  • CPU: STMicro ARM 32-bit Cortex™ M3 CPU
  • Firmware upgradable
  • RS-232 port for software/firmware upgrades, remote control

Telescope Compatibility

  • Advanced CG-5 (with AUX splitter)
  • Advanced VX
  • CGE
  • CGE Pro
  • LCM (with AUX splitter)
  • NexStar SE
  • NexStar SLT (with AUX splitter)

Note:NexStar GPS, NexStar i, Ultima 2000, Compustar, and other earlier generation scopes are not compatible with this accessory.

Firmware Update

In order to update the firmware on the StarSense, please visit StarSense updater website, and follow the following directions:

  1. Download the CFM archive
  2. Extract the archive to a folder
  3. Examine the file named StarSense_Connection_Diagram.jpg
  4. Run the program called CFM_1.7.jar (JAVA required)
  5. Press the Update button

CFM will download the latest firmware for all your devices and install it. You will receive a green checkmark when the process is complete.