According to the data, the diameter of the moon is relatively centered, at about 3,479 km. The weight of the moon is 1/81 that of the Earth, and its diameter is ¼ of the Earth's. In comparison to the Earth however, the moon's weight and diameter are much smaller. The distance between the Earth and the Moon is 384,385 km. The moon orbits the earth, and completes one rotation after 27 and a third days. To this day, many countries use the moon to determine their months of the year through use of a lunar calendar. However, people also thought the moon was a goddess or god (Luna and Diana were the "moon goddesses"), powerful enough to control humans and their actions. Since ancient times, people have measured time by the phases of the moon, from new moon to new moon again (about 29½ days). The moon is Earth's nearest neighbor in space.
"The moon is officially ranked as the Earth's satellite, but since it is relatively large and massive with a diameter of 3476 km and a mass of 0.012 that of the Earth, it may better be regarded as a companion planet." United Kingdom: Reed International Books Limited, 1993: 23. "Solving for d in the proportion d/2π r = 0.5°/360°, gives us the moon's diameter - about 2162 miles (3479 km)"
USA: Addison Wesley Publishing Company Inc, 1979: 115. The distance is about one fourth the diameter of the Earth, and 400 times smaller than that of the sun."Īrny, Thomas and Panindes, Nicholas A. "The moon measures about 2160 miles (3476 km) across. World Book- "Moon." Sydney, Australia: World Book Inc, 1992: 782-795. Orlando, Florida: Saunders College Publishing, 2000. Physics for Scientists and Engineers with Modern Physics.