Welcome to the Downloads Page!
Here you will find the latest PC Software, Object Catalogs, Manuals, Instructions, Test Procedures and other documentation.

With the release of Boot-Flasher 3.0, it is no longer necessary to manually download Sky Commander software or Sky Catalogs. This function is performed within the Boot-Flasher program itself. After starting the Boot-Flasher, just click on the 'Check for Updates' button. All necessary and up to date files will be downloaded. If you don't have Boot-Falsher 3.0 installed, please do so HERE

Sky Commander Software Notes
Astronomical Catalogs
New! PC Boot-Flasher Software for Windows 8 and 10 (and prior)
Sky Commander Serial Communications Port Testing

Test Document
Serial Communications Test Procedure
Aug 19, 2015

Alignment Star AZ-EL Calculator

Align Star AZ-EL Calculator
** v1.2 Oct 28 2021 **

Jupiter Moons Simulator and Calculator for Android

Jupiter Moons Simulator
** v1.0 Nov 22, 2021 **

SkyTracker Software & Documentation

Sky Commander User Manuals

** XP4 Manual **
Sky Commander XP4 Manual v4.1
March 15, 2009

Original Sky Commander Manual
Legacy Sky Commander Manual v3