Convert year to day (sidereal)
Please provide values below to convert year [y] to day (sidereal) [None], or Convert day (sidereal) to year.
How to Convert Year to Day (Sidereal)
1 y = 366.250021521436 None
Example: convert 15 y to None:
15 y = 15 × 366.250021521436 None = 5493.75032282155 None
Year to Day (Sidereal) Conversion Table
| year | day (sidereal) |
|---|
Year
A year is the period of time it takes for the Earth to complete one orbit around the Sun, approximately 365.25 days.
History/Origin
The concept of a year has been used since ancient times, with various civilizations developing calendars based on lunar and solar cycles. The Gregorian calendar, introduced in 1582, standardized the length of the year as 365 days with a leap year every four years to account for the extra quarter day.
Current Use
The year is widely used as a basic unit of time measurement for calendars, planning, and record-keeping worldwide, with the Gregorian calendar being the most common system in use today.
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.