Convert hour (sidereal) to year (sidereal)
Please provide values below to convert hour (sidereal) [None] to year (sidereal) [None], or Convert year (sidereal) to hour (sidereal).
How to Convert Hour (Sidereal) to Year (Sidereal)
1 None = 0.000113763653994397 None
Example: convert 15 None to None:
15 None = 15 × 0.000113763653994397 None = 0.00170645480991595 None
Hour (Sidereal) to Year (Sidereal) Conversion Table
| hour (sidereal) | year (sidereal) |
|---|
Hour (Sidereal)
An hour (sidereal) is a unit of time based on the Earth's rotation relative to distant stars, equal to approximately 3,894 seconds, used primarily in astronomy.
History/Origin
The sidereal hour originated from the ancient division of the day based on Earth's rotation relative to the stars, differing from the solar hour by about 4 minutes, and has been used historically in astronomy for precise timekeeping.
Current Use
Sidereal hours are mainly used in astronomy and astrophysics to measure celestial events and the Earth's rotation relative to distant celestial objects, rather than in everyday timekeeping.
Year (Sidereal)
A sidereal year is the time it takes for the Earth to complete one orbit around the Sun relative to the fixed stars, approximately 365.25636 days.
History/Origin
The concept of the sidereal year has been used since ancient astronomy to measure Earth's orbital period relative to distant stars, predating the Gregorian calendar system.
Current Use
Sidereal years are used in astronomy to track Earth's position in its orbit relative to fixed stars, aiding in celestial coordinate calculations and star cataloging.