Sidereal Days to Solar Days Converter
Definition
A sidereal day is the time it takes for the Earth to complete one rotation relative to the fixed stars, approximately 23 hours, 56 minutes, and 4.1 seconds (23.9344699 hours). A solar day (mean solar day) is the average time between two consecutive returns of the Sun to the local meridian, exactly 24 hours by definition. One sidereal day equals approximately 0.9972696 solar days.
History
The distinction between sidereal and solar days has been recognized since ancient times. Ancient astronomers in Babylon, Egypt, and Greece observed that the stars rise about 4 minutes earlier each night, reflecting the difference between these two measures of a day. The concept of a sidereal day became more precisely defined with the development of accurate astronomical observations in the 17th and 18th centuries. The modern definition of the solar day as exactly 24 hours was standardized with the adoption of mean solar time in the 19th century, which accounts for the variations in the apparent speed of the Sun throughout the year.
Convert sidereal days to solar days Easily
Use our sidereal days to solar days converter to quickly convert time conversion,sidereal to solar day,star time vs sun time. Whether you need a solar days in sidereal days,earth rotation time, our tool is fast, accurate, and free. Enter a value in Sidereal Days to get instant results. Our tool also supports variations like solar from sidereal,sidereal into solar and common misspellings such as sidereal day solar day difference.
How to Convert Sidereal Days to Solar Days
To convert sidereal days to solar days, multiply the sidereal days value by 0.99726957. Enter your value in the converter above for precise calculations.
sidereal days to solar days Conversion Table
| Sidereal Days (day (sidereal)) | Solar Days (day (solar)) |
|---|---|
| 1 day (sidereal) | 0.99726957 day (solar) |
| 2 day (sidereal) | 1.99453914 day (solar) |
| 3 day (sidereal) | 2.99180871 day (solar) |
| 4 day (sidereal) | 3.98907828 day (solar) |
| 5 day (sidereal) | 4.98634785 day (solar) |
| 6 day (sidereal) | 5.98361742 day (solar) |
| 7 day (sidereal) | 6.98088699 day (solar) |
| 8 day (sidereal) | 7.97815656 day (solar) |
| 9 day (sidereal) | 8.97542613 day (solar) |
| 10 day (sidereal) | 9.97269570 day (solar) |
| 50 day (sidereal) | 49.86347850 day (solar) |
| 100 day (sidereal) | 99.72695700 day (solar) |