Alnitak Downloads

Select operating system


Version 1.4.1 - 2021/12/10

Currently the drivers are supported on Windows 7 SP1, Windows 8.1 and Windows 10 (1607+).

ASCOM Download for Windows

Alpaca Download for Windows


Version 1.4.0 - 2021/10/26

Currently this is tested on Ubuntu (18.04+), Debian (9+), and Fedora based distributions.

The software is distributed as an AppImage, an extremely portable way to distribute Linux Applications as a single file. You can learn more about AppImages at their website.

Download for AMD 64 (most x86_64 desktop Linux)

Download for ARM (armhf, 32 bit arm including the Raspberry Pi 2+)

Download for ARM 64 (aarch64, 64 bit arm including the Raspberry Pi with a 64 bit OS)

Note on Linux COM Ports and USB devices

Many Linux distributions limit access to COM Ports by default. If required you will need to give your user permission to access ports to connect to the rotator. How this is accomplished varies from distribution to distribution.


Version 1.4.0 - 2021/10/26

Currently this is tested on macOS 10.15 but it should support 10.13+.

Download for macOS 64 bit

Installation steps for macOS users

You can also install the Windows or Linux driver in Parallels or on another machine and access it remotely on the Mac.

Help and other information

ASCOM Alpaca is here! With the release of ASCOM Platform 6.5 all Optec Alnitak flat field calibration devices have Alpaca drivers for cross platform support. These drivers are fully compatible with existing ASCOM clients through the updated ASCOM Platform. Alpaca drivers even allow you to connect to a Alnitak device attached to a different computer.

To use an Alpaca driver with ASCOM

Download the latest version (6.5 or greater is required) of the ASCOM Platform. Then turn on Alpaca Discovery in the ASCOM Chooser. After the search is complete you can select the local or remote Alpaca driver in the chooser.

Supported Alnitak Models

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