Parsec to Astronomical Unit Conversion
Convert between Parsec and Astronomical Unit quickly and accurately.
How to Convert Parsec to Astronomical Unit
Conversion Formula
Example
Convert 15 pc to AU:
Unit Information
Learn about the length units you're converting between
Parsec
pc
Definition
A parsec (symbol: pc) is a unit of length used in astronomy, equal to approximately 3.26 light-years or 30.86 trillion kilometers. It is based on the parallax method of measuring stellar distances and is commonly used for distances to nearby stars.
History/Origin
The parsec was introduced in 1913 by the British astronomer Herbert Hall Turner. The name comes from "parallax of one arcsecond" and is based on the trigonometric parallax method. It became the standard unit for stellar distances in astronomy.
Current Use
Parsecs are used in astronomy for measuring distances to stars, star clusters, and nearby galaxies. They are essential for stellar astronomy, galactic structure studies, and understanding the scale of our galaxy. The unit is particularly useful for distances measured using parallax methods.
Multiplier
3E+16
Offset
0
Astronomical Unit
AU
Definition
An astronomical unit (symbol: AU) is a unit of length used in astronomy, equal to the average distance between Earth and the Sun. It is approximately 149.6 million kilometers (93 million miles). The AU is the standard unit for measuring distances within the solar system.
History/Origin
The astronomical unit was first estimated by ancient astronomers using observations of planetary positions. The modern value was determined through radar measurements of Venus and Mercury in the 1960s. It was redefined in 2012 to be exactly 149,597,870,700 meters.
Current Use
The astronomical unit is used throughout astronomy for measuring distances within the solar system, planetary orbits, and spacecraft trajectories. It is essential for space mission planning, planetary science, and understanding the scale of our solar system.
Multiplier
149597870691
Offset
0
Parsec to Astronomical Unit Conversion Table
| Parsec [pc] | Astronomical Unit [AU] |
|---|---|
| 1 pc | 206264.806245 AU |
| 10 pc | 2062648.0624540001 AU |
| 25 pc | 5156620.156134 AU |
| 50 pc | 10313240.3122690003 AU |
| 100 pc | 20626480.6245380007 AU |
| 0 pc | 0E+0 AU |
| -10 pc | -2062648.0624540001 AU |
| -40 pc | -8250592.2498150002 AU |
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