Convert parsec to Earth's polar radius
Please provide values below to convert parsec [pc] to Earth's polar radius [R_p], or Convert Earth's polar radius to parsec.
How to Convert Parsec to Earth's Polar Radius
1 pc = 4854173067.71573 R_p
Example: convert 15 pc to R_p:
15 pc = 15 × 4854173067.71573 R_p = 72812596015.7359 R_p
Parsec to Earth's Polar Radius Conversion Table
| parsec | Earth's polar radius |
|---|
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.
Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.