Home / Time Conversion / Convert year (Julian) to year (sidereal)
Convert year (Julian) to year (sidereal)
Please provide values below to Convert year (Julian) to year (sidereal), or vice versa.
What is a Julian Year?
The Julian Year is exactly 365.25 days and was the standard year length in the Julian calendar. It is still used in astronomy for time calculations over long durations.
What is a Sidereal Year?
The Sidereal Year is the time it takes Earth to orbit the Sun relative to fixed stars, approximately 365.2564 days. It is slightly longer than the tropical year.
year (Julian) to year (sidereal) Conversion Table
| year (Julian) | year (sidereal) |
|---|---|
| 0.01 year (Julian) | 0.00999982586431 year (sidereal) |
| 0.1 year (Julian) | 0.0999982586431 year (sidereal) |
| 1 year (Julian) | 0.999982586431 year (sidereal) |
| 2 year (Julian) | 1.99996517286 year (sidereal) |
| 3 year (Julian) | 2.99994775929 year (sidereal) |
| 5 year (Julian) | 4.99991293216 year (sidereal) |
| 10 year (Julian) | 9.99982586431 year (sidereal) |
| 20 year (Julian) | 19.9996517286 year (sidereal) |
| 50 year (Julian) | 49.9991293216 year (sidereal) |
| 100 year (Julian) | 99.9982586431 year (sidereal) |
| 1000 year (Julian) | 999.982586431 year (sidereal) |
How to Convert year (Julian) to year (sidereal)
1 year (Julian) = 0.99998258643146 year (sidereal)
1 year (sidereal) = 1.0000174138718 year (Julian)
Example: convert 15 year (Julian) to year (sidereal):
15 × 0.99998258643146 = 14.999738796472 year (sidereal)