Convert parsec to astronomical unit
Please provide values below to convert parsec [pc] to astronomical unit [AU, UA], or Convert astronomical unit to parsec.
1 pc = 206264.806233 AU, UA. To convert parsec to astronomical unit, multiply the value by 206264.806233; to go the other way, divide by it (1 AU, UA = 4.84813681143e-06 pc). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 pc = 206264.806233 AU, UA
- 1 AU, UA = 4.84813681143e-06 pc
- 10 pc = 2062648.06233 AU, UA
- 100 pc = 20626480.6233 AU, UA
How to Convert Parsec to Astronomical Unit
1 pc = 206264.806232967 AU, UA
Example: convert 15 pc to AU, UA:
15 pc = 15 × 206264.806232967 AU, UA = 3093972.09349451 AU, UA
Parsec to Astronomical Unit Conversion Table
| parsec | astronomical unit |
|---|---|
| 1 pc | 206264.806233 AU, UA |
| 2 pc | 412529.612466 AU, UA |
| 3 pc | 618794.418699 AU, UA |
| 5 pc | 1031324.03116 AU, UA |
| 10 pc | 2062648.06233 AU, UA |
| 20 pc | 4125296.12466 AU, UA |
| 50 pc | 10313240.3116 AU, UA |
| 100 pc | 20626480.6233 AU, UA |
| 500 pc | 103132403.116 AU, UA |
| 1000 pc | 206264806.233 AU, UA |
Parsec
A parsec 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. It is the distance at which one astronomical unit subtends an angle of one arcsecond.
History/Origin
The term "parsec" is a portmanteau of "parallax" and "second," coined by British astronomer Herbert Hall Turner in 1913.
Current Use
The parsec is the preferred unit of distance in astronomy and astrophysics for expressing the distances to stars and galaxies.
Astronomical Unit
The astronomical unit is a unit of length, now defined as exactly 149,597,870,700 meters. It is approximately the average distance between the Earth and the Sun.
History/Origin
Historically, the astronomical unit was the mean Earth-Sun distance. In 2012, the International Astronomical Union (IAU) redefined it as a fixed constant.
Current Use
The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.
Frequently Asked Questions
What is 1 parsec in astronomical unit?
1 parsec (pc) = 206264.806233 astronomical unit (AU, UA).
How do you convert parsec to astronomical unit?
Multiply the parsec value by 206264.806233. For example, 25 pc × 206264.806233 = 5156620.15582 AU, UA.
What is 10 parsec in astronomical unit?
10 pc = 2062648.06233 AU, UA.
Which unit is larger, the parsec or the astronomical unit?
The parsec is the larger unit: 1 pc = 206264.806233 AU, UA.