C4 Visual Imagery

While your visit may be centered on the solstices or equinoxes, if your plans involve the position of sun and moon sets and rises or the position of the Milky Way in relation to the ruins and landscape, a good tool is The Photographer’s Ephemeris. This can be used well in advance of a visit to determine the dates that will suit your particular photographic goals.

If you want to print a calendar with sunset and sunrise times, this site is quite useful.