The distance between earth and moon?

How far is the distance between the earth and the moon?

Ancient Greeks watched the moon at all its stages, telling them that there was a real space object at a fixed distance where they stood on the surface of the earth. The Greeks put unusual ideas to determine the distance between the earth and the moon. But thinkers of the Hellenistic period The naked eye only.

Then came the Iron Age and their research finally proved that the space between the moon and the human beings on the Earth's surface is about 240,000 miles. We now know that the distance between Earth and Moon is approximately 384,400 kilometers, or about 238857 miles.

The Earth's Ocean and studies and research has now proved that the moon is not fixed in place but it revolves around the Earth in an oval orbit, so the distance between the moon and the earth is not constant but constantly changing with its rotation around the orbit of the oval, and the distance at the nearest point of the moon between the Earth and about 353300 km, The distance at the farthest point between it and the Earth is about 406700 km.

• Logically determine the distance and then laser:

There were theories to determine the distance between the earth and the moon of the astronomer Copernicus, but there was another theory before Copernicus was the Greek astronomer Aristarchus Samos, who developed his research to determine the distance between the moon and earth in the middle of the third century BC.

A long time before the invention of the telescope and computer, Aristarchus was a physics student in Alexandria and was born on the island of Samos, the birthplace of the genius of mathematics in Pythagoras.

Observing the lunar eclipse, Aristarchus realized the various phases of the moon that corresponded to the visible shift of the earth's shadow on the moon. By studying the distance between the earth and the moon by about 240,000 miles or 60 times the Earth's radius, they now determined the distance between the earth and the moon by laser.

• The distance between the earth and the moon:

Since 4.6 million years ago, the Moon was in its early stages of formation and was closer to Earth, as the Moon actually slowly escapes slowly at a rate of approximately 4 cm per year. Earth and Moon are linked by gravitational pull, but the Earth orbits faster than the Moon, The gravity between the earth and the moon is a major cause of the tidal effect and the force of attraction works to slow down the satellites, as it works to transfer energy from Earth to the moon, extending the orbit on which the moon revolves and thus occurs a slow increase in distance between the moon and earth over time, Increases the lunar cycle, as the rotation of the earth slows the movement of the moon.

How long will it take to travel from Earth to the moon?

In a modern passenger plane running at 1000 kilometers per hour it takes 16 days without stopping, but it will take about 8 hours and a half as the rocket launches from the ground to the moon, 58,000 km per hour.