Jump to content

how to measure moon


offair
 Share

Recommended Posts

Yes

Relative to the Earth it travels the following distance:

In one lunar month it moves Orbital diameter x pi = 440,000 miles x 3.14= 1,382,000

In one year there are 12.38 lunar months.

So distance travelled in one year = 1,382,000 x 12.38 = 17,104,000

 

Relative to the sun it is also moving, on average, an additional distance equivalent to the earth's orbit.

This is 3.14 * 186,000,000 = 584,040,000

So, the total distance travelled, relative to the sun, is 600,000,000 miles

Link to comment
Share on other sites

Yes

Relative to the Earth it travels the following distance:

In one lunar month it moves Orbital diameter x pi = 440' date='000 miles x 3.14= 1,382,000

In one year there are 12.38 lunar months.

So distance travelled in one year = 1,382,000 x 12.38 = 17,104,000

 

Relative to the sun it is also moving, on average, an additional distance equivalent to the earth's orbit.

This is 3.14 * 186,000,000 = 584,040,000

So, the total distance travelled, relative to the sun, is 600,000,000 miles[/quote']

 

If you are looking for the distance relative to the Earth you should use the sidereal month rather than the synodic month. There are 13.38 sidereal months in a year. this increases the distance traveled to 18,491,000 miles.

Link to comment
Share on other sites

If this happens to be a more advanced calculus class, then for the distance relative to the sun, you may be required to do integration along the moon's trajectory. Given that you know its period and the integration period, this should be trivial.... numerically integrating that is :P

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.