Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. 30.9 trillion kilometres (19.2 trillion miles ). You can find metric conversion tables for SI units, as well as English units, currency, and other data. The parsec (symbol: pc) is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to 3.26 light-years or 206,265 astronomical units (AU), i.e. For example, the nearest star, Proxima Centauri, which is part of the Alpha Centauri triple-star system, has a parallax of 0. However, both American and non-American forms of English agree that the spelling "meter" should be used as a suffix in the names of measuring devices such as chronometers and micrometers.Ĭ provides an online conversion calculator for all types of measurement units. The internationally-accepted spelling of the unit in English is "metre", although the American English spelling meter is a common variant. The word parsec is a combination of parallax and arcsecond, which are terms related to the measurement of angles. Meters also can be marked as metres (in British English spelling). The metre, symbol: m, is the basic unit of distance (or of "length", in the parlance of the physical sciences) in the International System of Units. 1 m is equivalent to 3.28084 ft or 1.09361 yd. It stands for "parallax of one arc second", and is approximately 19,131,554,073,600 (19 trillion) miles. The parsec (symbol pc) is a unit of length used in astronomy. The definition of a parsec is as follows: The SI prefix "giga" represents a factor of 1ly9.46×10 to the power 15 mtr Parsecparsec is the distance from where the. Meters to gigaparsec, or enter any two units below: Enter two units to convert From: You can also get the formula used in Light Year. The radius of the earth's orbital is 1 astronomical unit (AU) 1.5×10 11 m. You can do the reverse unit conversion from Parsec is the distance at which the mean radius of the earth's orbit subtends an angle of one arc second.
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