The eight sabbats of the solar year on one wheel, computed for your location and hemisphere rather than taken from fixed calendar dates.
Wheel of the Year app for iPhone. The eight sabbats, the solstices and equinoxes plus the four Celtic fire festivals, with the real astronomical instants computed for your year, location and hemisphere instead of the conventional fixed dates. Lore and correspondences for each festival, and a home screen widget. For pagan, Wiccan and Druid practice.