Decameter to Parsec Converter

A decameter (dam) is a unit of length in the metric system equal to 10 meters. It serves as an intermediate unit between meters and hectometers.

The decameter was part of the original metric system established in 1795. The prefix 'deca-' comes from the Greek word 'deka' meaning 'ten'. Despite being part of the original system, it has seen very limited practical adoption.

Decameters are rarely used in practical applications. They may occasionally appear in some technical or scientific contexts, but meters and kilometers are generally preferred for most measurements that would fall within the decameter range.

A parsec (pc) is a unit of length used in astronomy, equal to approximately 3.26 light-years or 206,265 astronomical units. It is defined as the distance at which one astronomical unit subtends an angle of one arcsecond.

The parsec was defined in 1913 by British astronomer Herbert Hall Turner. The name combines 'parallax' and 'arcsecond', referring to the trigonometric parallax method used to measure stellar distances. It became the preferred unit for professional astronomical distance measurements.

Parsecs are the standard unit for measuring stellar and galactic distances in professional astronomy. They're used in stellar catalogs, galactic structure studies, and cosmological research. Kiloparsecs and megaparsecs are used for larger cosmic distances.