A telescope guiding software that simplifies the process of tracking a guide star, letting you concentrate on other aspects of deep-sky imaging or spectroscopy.
PHD2 is the second generation of Craig Stark's original PHD application. PHD became a fixture of the amateur astronomy community with more than a quarter million downloads. From its inception, it has successfully embraced three seemingly conflicting objectives: - For the beginning or casual imager, to deliver ease of use and good guiding performance "out of the box". - For the experienced imager, to deliver sophisticated guiding algorithms, extensive options for tuning, and broad support for imaging equipment. - For all users, to consistently exhibit a commercial level of quality while being available free of charge. Since the original code was released to open-source in 2013, it has been completely overhauled to make it more extensible and supportable. With the restructuring in place, substantial new features and capabilities have been added, many of which focus on helping you achieve better guiding results. Users of PHD2 can be confident it will remain committed to the three objectives that made the original application so successful.
fix a problem where the camera settings are not displayed properly on some computers
Frequently asked questions
Is PHD 2 free?
Yes. PHD 2 is free and open-source software released under the BSD-3-Clause license.
What is the latest version of PHD 2?
The latest version is 2.6.14.
Is it safe to download PHD 2?
The download button links to the official installer published on openphdguiding.org, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with d7a21f67de32b901c6d173da9a27d765a0d98874798f898df6ca51cd5453b5ff.
Which Windows versions does PHD 2 support?
PHD 2 runs on Windows and is available for 32-bit (x86) systems.
How do I install PHD 2 silently?
Run the offline installer with "phd2-2.6.14-installer.exe" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-, or install it with Windows Package Manager: winget install --id=OpenPHDGuiding.PHD2 -e --silent.
How do I uninstall PHD 2?
Open Settings › Apps › Installed apps, find PHD 2 and select Uninstall. From the command line, run winget uninstall --id=OpenPHDGuiding.PHD2 -e.
Alternatives to PHD 2
Other Teaching & Training programs for Windows from different developers.