PHD2 comes with a built-in help file, which is an excellent way to get started with PHD2. You can access the help file from the Help menu in PHD2, or you can view or download the manual here: HTML PDF.

Additional resources:   Español PDF     Français PDF     Italiano PDF    日本語の HTML

Please see Getting Help for tips on how to ask for help with a guiding problem or to report an issue with PHD2.

News & Resources

December 22, 2023 - PHD2 v2.6.13 Released

December 21, 2019 - PHD2 Best Practices

December 7, 2019 - macOS Catalina

April 26, 2018 - Polar Alignment tool video tutorials

June 12, 2016 - PHD2_Broker package available