9. The mass of the Sun is 1.99x 1090 kg, and the radius of the Earth's orbit around the Sun is 1.5x1011 m From this, calculate the orbital speed of the Earth
The orbital period of Titan ... Hyperion, another moon of Saturn, orbits at a mean radius of 1.48 x109 m. ... mass of the Sun is 1.99x1030 kg. ... calculate Pluto's orbital period in Earth days.
