The Orbit of the Moon around the Sun is Convex

http://www.math.nus.edu.sg/aslaksen/teaching/convex.html

by jyrzyk • 18 years ago

28 9 18 years ago

math.nus.edu.sg

kqr22• 18 years ago

The author also seems to have an interesting course on astronomy and culture:

We will look at questions like: How is the date of Chinese New Year determined? Why do the Muslim and Chinese months start on different days? Will the Moon ever look like it does on the Singapore flag? What date of the year is the earliest sunrise in Singapore? How did ancient sailors navigate?

http://www.math.nus.edu.sg/aslaksen/teaching/heavenly.html

dexter2• 18 years ago

this is something i need a video to understand properly

kqr22• 18 years ago

Not a video, but a helpful image:

http://upload.wikimedia.org/wikipedia/commons/1/1d/Moon_traj...

mapleoin• 18 years ago

mm... nope. that didn't help

dexter2• 18 years ago

That works actually, thanks

est• 18 years ago

what about other planets & satellites in our solar system??

andrewf• 18 years ago

The key to really getting this for me was:

You may also want to remember that it is the barycenter of the Earth-Moon system that moves in an ellipse around the Sun, and that the orbits of both the Earth and the Moon are perturbations of this ellipse.

The Orbit of the Moon around the Sun is Convex

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