Hours to Sidereal Days: the quick answer
1 h = 0.0417807 sid d
1 hour equals 0.0417807 sidereal days
To convert hours to sidereal days, multiply the value by 0.0417807. To go the other way, multiply sidereal days by 23.9345 to get hours.
To convert hours to sidereal days, multiply the value by 0.0417807. To go the other way, multiply sidereal days by 23.9345 to get hours.
| Hours (h) | Sidereal Days (sid d) |
|---|---|
| 1 h | 0.0417807 sid d |
| 2 h | 0.0835615 sid d |
| 3 h | 0.125342 sid d |
| 4 h | 0.167123 sid d |
| 5 h | 0.208904 sid d |
| 6 h | 0.250684 sid d |
| 7 h | 0.292465 sid d |
| 8 h | 0.334246 sid d |
| 9 h | 0.376027 sid d |
| 10 h | 0.417807 sid d |
| 12 h | 0.501369 sid d |
| 14 h | 0.58493 sid d |
| 15 h | 0.626711 sid d |
| 20 h | 0.835615 sid d |
| 21 h | 0.877396 sid d |
| 24 h | 1.00274 sid d |
| 25 h | 1.04452 sid d |
| 30 h | 1.25342 sid d |
| 40 h | 1.67123 sid d |
| 50 h | 2.08904 sid d |
| 60 h | 2.50684 sid d |
| 75 h | 3.13356 sid d |
| 80 h | 3.34246 sid d |
| 100 h | 4.17807 sid d |
| 200 h | 8.35615 sid d |
| 250 h | 10.4452 sid d |
| 300 h | 12.5342 sid d |
| 400 h | 16.7123 sid d |
| 500 h | 20.8904 sid d |
| 750 h | 31.3356 sid d |
| 1,000 h | 41.7807 sid d |
Hour (h). An hour is 60 minutes (3,600 seconds).
Sidereal day (sid d). A sidereal day (23 h 56 min 4.09 s) is one rotation of the Earth relative to the stars.
There are 0.0417807 sidereal days in one hour.
Multiply the number of hours by 0.0417807. For example, 10 hours equal 0.417807 sidereal days.
One sidereal day equals 23.9345 hours.
0.501369 sidereal days. Other common values: 5 hours = 0.208904 sidereal days and 100 hours = 4.17807 sidereal days.