Convert punto (Castile) to astronomical unit
Selected category: length.
Definition and details for punto (Castile):
Punto is a traditional unit of length comparable to the "point". In Castile it was defined to be equal to 1/1728 pie or about 0.16 mm.
Definition and details for astronomical unit:
Astronomers use astronomical unit (ua or au or AU) as yardstick for measuring the distances between objects in the Solar System. AU is defined as the distance from the center of the Earth to the center of the Sun. Currently it is accepted that this length is 149 597 870 691 meters, with an uncertainty of about 30 meters.