![]() 30.9 trillion kilometres (19.2 trillion miles). Its name comes from PARalax SECond because a star at that distance would appear to shift by one second (1/60. 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. Symbols, abbreviations, or full names for units of length,Īrea, mass, pressure, and other types. A parsec is a distance of about 3.26 light years. You can find metric conversion tables for SI units, as wellĪs English units, currency, and other data. Use the conversion factor 1 parsec 3.262 light-years to find the closest conversion of this distance from light-years to parsecs (pc). The radius of earths orbit (mean distance between earth and sun) is equal to one. It stands for "parallax of one arc second", and is approximately 19,131,554,073,600 (19 trillion) miles.Ĭonversion calculator for all types of measurement units. The parsec was defined to be the distance at which 1 AU (perpendicular to the line of sight) subtends an angle of 1 arcsecond: 1 parsec ( pc) distance d when angle is 1 arcsecond 3.086 1013 km 3.26 ly Using the Earth’s orbit as a baseline, the distance (in parsecs) to a star can be calculated using: d 1/p where p is measured in arcseconds. One parsec is the distance which subtends a parallax angle of one arcsecond. The parsec (symbol pc) is a unit of length used in astronomy. The International Astronomical Union recommends "au" and international standard ISO 31-1 uses "AU". To swap units Amount 1 Parsec 1.9173512 x 10 13 Miles (rounded to 8 digits) Display result as A parsec is a unit of distance used in astronomy. The symbol "ua" is recommended by the Bureau International des Poids et Mesures, but in the United States and other anglophone countries the reverse usage is more common. The currently accepted value of the AU is 149 597 870 691 ± 30 metres (about 150 million kilometres or 93 million miles). ![]() It is approximately equal to the mean distance between the Earth and Sun. Parsec to AU, or enter any two units below: Enter two units to convert From: ![]() You can do the reverse unit conversion from ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |