PHD2 is the second generation of Craig Stark's original PHD application. PHD
has become 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:
In order to extend PHD to more platforms and further expand its capabilities, Craig released his program to the open-source community, and PHD2
is the direct result of that generosity. It has been
substantially restructured to make it more extensible and supportable
going forward. Moreover, the initial release of PHD2
already includes a substantial number of new features and refinements
while retaining all the core strengths of the original. Users of
the new PHD2 can be confident it will remain committed to the three objectives that made the original application so successful.
- For the beginning or casual imager, to deliver ease of use and good guiding performance "out of the box"
the experienced imager, to deliver sophisticated guiding
algorithms, extensive options for tuning, and broad support for imaging
- For all users, to consistently exhibit a commercial level of quality while being available free of charge