Average distance form earth=384,403,000 meters

In summary, the average distance from Earth to the Moon is approximately 384,403,000 meters or 238,855 miles. Scientists determined this using methods such as radar measurements, lunar laser ranging, and satellite imagery. The distance between Earth and the Moon is constantly changing due to the elliptical orbit of the Moon, ranging from approximately 363,300,000 meters at its closest point to 405,500,000 meters at its farthest point. The distance is typically measured in meters or kilometers, but may also be expressed in miles or astronomical units. This distance plays a significant role in creating tides on Earth, as the Moon's gravitational pull causes high tides and its average distance affects their strength and frequency.
  • #1
luckis11
272
2
http://en.wikipedia.org/wiki/Moon

average distance form earth=384,403,000meters. Multiply by 2π=2,412,743,158meters
orbital period=27days7hours43.1minutes=114,186sec

This gives 2,412,743,158/114,186=21,130meters/sec linear speed.
Wikipedia says 1,021meters/sec

Where's the mistake?
 
Last edited:
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  • #2


1 day is 86400 seconds, so 27 days can't be 114186 seconds.
 
  • #3


Cheers. Was hoping it was my mistake.
 

What is the average distance from Earth to the Moon?

The average distance from Earth to the Moon is approximately 384,403,000 meters or 238,855 miles.

How did scientists determine the average distance from Earth to the Moon?

Scientists used various methods such as radar measurements, lunar laser ranging, and satellite imagery to accurately measure the distance between Earth and the Moon.

Does the distance between Earth and the Moon change?

Yes, the distance between Earth and the Moon is constantly changing due to the elliptical orbit of the Moon around Earth. It can vary from approximately 363,300,000 meters at its closest point (perigee) to 405,500,000 meters at its farthest point (apogee).

What unit of measurement is used to express the distance between Earth and the Moon?

The distance between Earth and the Moon is typically measured in meters (m) or kilometers (km). In some cases, it may also be expressed in miles (mi) or astronomical units (AU).

How does the distance between Earth and the Moon affect tides on Earth?

The distance between Earth and the Moon plays a significant role in creating tides on Earth. The Moon's gravitational pull on Earth's oceans causes the water to bulge outwards, creating high tides. The average distance between Earth and the Moon is crucial in determining the strength and frequency of tides.

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