L'Astronomia del Venerdi' Santo e l'ora della Sindone

The solar eclipse of Good Friday has always been recognized as a problem from the astronomical point of view. The date of Crucifixion has been investigated by many scholars and the most accredited one is friday 3 april 33, when, at sunset an eclipsed Moon rised. Few minutes later the apparition of a third star of medium magnitude stated the beginning of the sabbatical rest: before that time Jesus has been buried, wrapped into the shroud. All these topics are reviewed from an astronomical point of view with some theological considerations.