Solar equilibrium tide
Earth-sun interactions produce ocean tides
- Earth-moon distance = 59 x RE; Mass of moon 1/82 mass of earth
- Earth-sun distance = 23,000 x RE; Mass of sun 330,00 x mass of earth
- Solar tide is 47% of that generated by earth moon interactions
- Solar tide has 12 hr period; see effects of tilt of rotation axis & elliptical orbit, too
Add lunar & solar equilibrium tides together to get spring & neap tide