Convert year (Julian) to day (sidereal)
Please provide values below to convert year (Julian) [None] to day (sidereal) [None], or Convert day (sidereal) to year (Julian).
How to Convert Year (Julian) to Day (Sidereal)
1 None = 366.250021521436 None
Example: convert 15 None to None:
15 None = 15 × 366.250021521436 None = 5493.75032282155 None
Year (Julian) to Day (Sidereal) Conversion Table
| year (Julian) | day (sidereal) |
|---|
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.
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.