Convert day (sidereal) to year (Julian)
Please provide values below to convert day (sidereal) [None] to year (Julian) [None], or Convert year (Julian) to day (sidereal).
How to Convert Day (Sidereal) to Year (Julian)
1 None = 0.00273037526617994 None
Example: convert 15 None to None:
15 None = 15 × 0.00273037526617994 None = 0.0409556289926991 None
Day (Sidereal) to Year (Julian) Conversion Table
| day (sidereal) | year (Julian) |
|---|
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.
Year (Julian)
A year (Julian) is the period of time approximately 365.25 days, based on the Julian calendar, used to measure the length of a complete cycle of seasons and calendar years.
History/Origin
The Julian year was introduced by Julius Caesar in 45 BC as part of the Julian calendar reform, replacing the Roman calendar. It standardized the year length to 365 days with a leap year every four years to account for the extra quarter day.
Current Use
The Julian year is primarily used in astronomical calculations and historical contexts. It is also the basis for the Julian date system used in astronomy and other sciences to record continuous days.