Convert hour (sidereal) to day (sidereal)
Please provide values below to convert hour (sidereal) [None] to day (sidereal) [None], or Convert day (sidereal) to hour (sidereal).
How to Convert Hour (Sidereal) to Day (Sidereal)
1 None = 0.0416666665796234 None
Example: convert 15 None to None:
15 None = 15 × 0.0416666665796234 None = 0.624999998694352 None
Hour (Sidereal) to Day (Sidereal) Conversion Table
| hour (sidereal) | day (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.
Day (Sidereal)
A sidereal day is the time it takes for the Earth to complete one rotation relative to distant stars, approximately 23 hours, 56 minutes, and 4.1 seconds.
History/Origin
The concept of the sidereal day has been used in astronomy for centuries to measure Earth's rotation relative to fixed stars, differing slightly from the solar day used in everyday timekeeping.
Current Use
Sidereal days are primarily used in astronomy and celestial navigation to track the positions of stars and other celestial objects accurately.