distance to the moon
Distance to moon
The average distance to the Moon is 382,500 km.
The distance varies because the Moon travels around Earth in an elliptical orbit.
At perigee, the point at which the Moon is closest to Earth, the distance is approximately 360,000 km.
At apogee, the point at which the Moon is farthest from Earth, the distance is approximately 405,000 km.
Diameter of the Moon and Earth
The Earth’s diameter as 12,756 km and the Moon’s diameter as 3,476 km.
Therefore, the Moon’s diameter is 27.25% of Earth’s diameter.
An official basketball has a diameter of 24 cm. This can serve as a model for Earth.
A tennis ball has a diameter of 6.9 cm which is close to 27.25% of the basketball.
(The tennis ball is actually 28.8% the size of the basketball.)
These values are very close to the size relationship between Earth and the Moon.
The tennis ball, therefore, can be used as a model of the Moon.
After Hours Doctors
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