Convert shackle (Britain 16th century) to parsec
Selected category: length.
Definition and details for shackle (Britain 16th century):
Shackle unit of length used for measuring lengths, especially anchor chains. During the 16th century in Britain, shackle was defined as 75 feet or 22.86 meters.
Definition and details for parsec:
Parsec (pc or psc) is a unit of distance used by the astronomers. Parsec is defined as the distance at which a star would appear to shift its position by one arcsecond during the time in which Earth moves one astronomical unit perpendicular to the direction of the star.