A cappello romano (pl. cappelli romani; Italian, 'Roman hat') or saturno (pl. saturni; because its appearance is reminiscent of the ringed planet Saturn) is a clerical hat with a wide, circular brim and a rounded crown worn outdoors in some countries by Catholic clergy, when dressed in a cassock.
Unlike many other articles of clerical clothing, the cappello romano serves no ceremonial purpose, being primarily a practical item. (The galero is a ceremonial wide brim hat no longer usually worn. However, on February 19, 2011, Raymond Cardinal Burke became the first cardinal in recent times to wear [for a single photo] the galero.) The cappello romano is not used in liturgical services. Since the general abandonment of the cassock as street dress[citation needed], it is uncommon even in Rome today. However, it was quite popular there and in some other countries with a Catholic majority population from the 17th century until around 1970.