Add GPS to your telescope! Our GPS-NX03 receiver works with the Astro-Physics GTO, Celestron NexStar, NexStar+, StarSense, Losmandy Gemini, Meade 495/497/497EP Autostar, Audiostar, LX200 Classic, Autostar II, Orion Atlas/Sirius GoTo and Sky-Watcher SynScan (see telescope models).

April 7, 2019 GPS Week Number Roll Over problems?
If your Meade GPS thinks it's 2099, fix it for free with StarPatch!

Imagine if your telescope could access the Global Positioning System so that it always knew when and where you were observing from. No more checking your watch, looking up site coordinates or fiddling with the keypad to enter the date, time, latitude and longitude. StarGPS uses a single cable to connect your telescope to the GPS receiver and automatically input these values... making your telescope setup much easier and more precise!

"I am very impressed and this is an absolutely fantastic product"
Dr. P. Clay Sherrod
Arkansas Sky Observatory

High performance GPS-NX03 receiver
Measures only 39 x 45 x 16 mm (1.5 x 1.8 x 0.6 in)

The StarGPS-NX Package includes:

  1. One GPS-NX03 receiver
  2. One cable to connect the GPS to your telescope/controller:
    GPS-ASTAR* - Meade Autostar/Audiostar (ETX/LXD/LX90/LX80/LT)
    GPS-ASTARX* - Meade LX65/85 with reversed polarity AUX port
    GPS-Astro - Astro-Physics GTO
    GPS-Celestron** - Celestron NexStar, NexStar+, StarSense
    GPS-LX200 - Meade LX200 Classic, Autostar II
    GPS-Gemini - Gemini-1 with 4-pin DIN power jack
    GPS-Gemini2 - Gemini-2 or Gemini-2 Mini
    GPS-GeminiDC - Older Gemini-1 with 1-pin DC power jack
    GPS-Synta - Orion Atlas/Sirius or Sky-Watcher SynScan***
    GPS-USB - Windows PC connected mount
    * LX65/85 see warning for reversed polarity AUX ports
    ** Includes a 6p6c splitter for use with GT, AS-GT, CG5
    *** Requires firmware version 3.10+ or AZ 3.03+

StarGPS-NX Package


If you own an Autostar 497/497EP or Audiostar controlled telescope such as the Meade ETX, LXD, LX90, LX80, LT, LX65 or LX85 series or an upgraded LX200 Classic then we recommend that you consider upgrading to the StarGPS Package which adds a StarPatch registration key ($79) and USB-ASTAR cable ($30). StarPatch uses your Windows PC to perform a one-time, quick and easy installation that reprograms the handset to accept raw GPS data. You can then connect the GPS to your telescope, turn the scope on, and watch as the handset displays incoming GPS data including time, number of satellites and signal strength as shown below. Once a location fix is obtained the handset will beep, display the results and skip ahead to the "Align:" prompt. Click here for more information about StarPatch.


The StarGPS Package includes:

  1. GPS-NX03 receiver
  2. GPS-ASTAR cable to connect the GPS to the handset. If you have an LX65/85 you may require a GPS-ASTARX cable (contact us if you are not sure which cable to select).
  3. StarPatch software registration key to add GPS Setup capability to one Autostar 497/497EP or Audiostar handset
  4. USB-ASTAR cable to connect your PC to the handset

StarGPS Package

Telescope Models

Astro-Physics GTO is provided with the following mounts:

  • 400GTO, 600EGTO, 900GTO, 1200GTO with GTOCP2
  • 1200GTO, Mach1GTO, 1100GTO, 1600GTO, 3600GTO with GTOCP3 or GTOCP4

Celestron NexStar, NexStar+ and StarSense controlled telescopes are manufactured by Celestron and include the models listed below. Our new GPS-Celestron cable allows StarGPS to function like a Celestron SkySync which is compatible with all non-GPS Celestron computerized telescopes. A 6p6c splitter cable is included for use with mounts that do not have an AUX port.

Gemini-1, Gemini-2 and Gemini-2 Mini are provided with the following mounts:

Meade Autostar 497/497EP and Audiostar controlled telescopes are manufactured by Meade Instruments Corporation and include the following models:

Meade LX200 Classic

Meade Autostar II controlled telescopes including the following models (the GPS-NX03 is useful in cases where the telescopes built-in GPS is not operating properly:

  • LX200GPS, LX200R and LX200ACF
  • LX400ACF and RCX400

Orion Atlas/Sirius GoTo and Sky-Watcher SynScan controlled telescopes include the models listed below. StarGPS-NX requires a hand controller with firmware version 3.10+ or AZ 3.03+.

  • Orion Atlas/Sirius EQ-G and SkyView Pro
  • Sky-Watcher EQ-3/5/6 SynScan


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