- #1
Hossam Aboulfotouh
- 5
- 0
Can anybody tell me what is the spin of Mercury, is it 3/2 or 1/2, and why?
- 3/2 = sidereal orbit period (87.969 days) / sidereal rotation period (1407.6 hrs)
- 1/2 = tropical orbit period (87.968 days) / length of day (4222.6 hrs)
Data are from NASA, planetary fact sheets.
- 3/2 = sidereal orbit period (87.969 days) / sidereal rotation period (1407.6 hrs)
- 1/2 = tropical orbit period (87.968 days) / length of day (4222.6 hrs)
Data are from NASA, planetary fact sheets.