Convert Earth's equatorial radius to astronomical unit
Please provide values below to convert Earth's equatorial radius [R_e] to astronomical unit [AU, UA], or Convert astronomical unit to Earth's equatorial radius.
1 R_e = 4.26352124543e-05 AU, UA. To convert Earth's equatorial radius to astronomical unit, multiply the value by 4.26352124543e-05; to go the other way, divide by it (1 AU, UA = 23454.791062 R_e). Both units measure length and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 R_e = 4.26352124543e-05 AU, UA
- 1 AU, UA = 23454.791062 R_e
- 10 R_e = 0.000426352124543 AU, UA
- 100 R_e = 0.00426352124543 AU, UA
How to Convert Earth's Equatorial Radius to Astronomical Unit
1 R_e = 4.26352124542639e-05 AU, UA
Example: convert 15 R_e to AU, UA:
15 R_e = 15 × 4.26352124542639e-05 AU, UA = 0.000639528186813959 AU, UA
Earth's Equatorial Radius to Astronomical Unit Conversion Table
| Earth's equatorial radius | astronomical unit |
|---|---|
| 1 R_e | 4.26352124543e-05 AU, UA |
| 2 R_e | 8.52704249085e-05 AU, UA |
| 3 R_e | 0.000127905637363 AU, UA |
| 5 R_e | 0.000213176062271 AU, UA |
| 10 R_e | 0.000426352124543 AU, UA |
| 20 R_e | 0.000852704249085 AU, UA |
| 50 R_e | 0.00213176062271 AU, UA |
| 100 R_e | 0.00426352124543 AU, UA |
| 500 R_e | 0.0213176062271 AU, UA |
| 1000 R_e | 0.0426352124543 AU, UA |
Earth's Equatorial Radius
The Earth's equatorial radius is the distance from the center of the Earth to the equator, approximately 6,378.1 kilometers.
History/Origin
The size and shape of the Earth have been a subject of study since ancient times. Modern measurements are made using satellite geodesy.
Current Use
The Earth's equatorial radius is a fundamental parameter in geodesy, geophysics, and astronomy. It is used in cartography and for defining the shape of the Earth.
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 Earth's equatorial radius in astronomical unit?
1 Earth's equatorial radius (R_e) = 4.26352124543e-05 astronomical unit (AU, UA).
How do you convert Earth's equatorial radius to astronomical unit?
Multiply the Earth's equatorial radius value by 4.26352124543e-05. For example, 25 R_e × 4.26352124543e-05 = 0.00106588031136 AU, UA.
What is 10 Earth's equatorial radius in astronomical unit?
10 R_e = 0.000426352124543 AU, UA.
Which unit is larger, the Earth's equatorial radius or the astronomical unit?
The astronomical unit is the larger unit: 1 R_e equals only 4.26352124543e-05 AU, UA.