Friday, March 25, 2011

For Further Reading

Here are some links if you would like a little more information on the apparent motion of the Sun relative to the Earth and its effect on the climate. Assuming uniform circular motion one gets a first approximation to the motion of the Sun along the Ecliptic which is used in the link on the Declination of the Sun. This can be used with in the derived formula for an estimate of the amount of daylight for any day of the year.


Plane of the Ecliptic

Sun Path

Effect of the Sun Angle on Climate

Day Length

Declination of the Sun

Uniform Circular Motion

Eudoxan Astronomy

Right Ascension

From Stargazers to Starships

The last link is to a website which gives a basic introduction to Astronomy.

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