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8 godz. temu · Sun spots would have covered 5–30% of the surface. The rotation rate was gradually slowed by magnetic braking, as the ... (9,800 °F) and the density to only 0.2 g/m 3 (about 1/10,000 the density of air at sea level, ... (more ideally using the transit of Venus) could be used to trigonometrically determine the distances between ...
8 godz. temu · The Moon is Earth's only natural satellite.It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have over time synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth. . The Moon's gravitational pull – and to a ...
