SEASONS

First and foremost�.It is notwarmer in the summer because we space closer come the Sun. Many people think this, however it is justnot true. In fact, as soon as it is summer in Lenox, the planet is actually at itsfarthest allude from the Sun.

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So what reasons the seasons???

2 things

The tilt How direct the Sun�s beam are

The earth is tilted in ~ 23.5 ˚

The axis constantly points come Polaris

Polaris is knownas the phibìc Star

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The arrows come the right represent light rays indigenous the sun. Due to the fact that the sun is so huge compared come the Earth, just the rays that come directly at planet will hit it. The light rays that room hitting the earth at 90 degrees are known as direct rays. Here they fight the earth in the red area. Since the planet is curved, no all rays hit the directly. Irradiate rays the hit the planet at an edge are recognized as indirect beam (green area). Areas of the planet that are hit by direct rays are warmer than locations that room hit by indirect rays. The equator (yellow) is constantly hit by direct rays of the sun. This is why that is constantly warm there. The poles are constantly being struggle by indirect rays. The is why the is cold there.

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Take a look in ~ the snapshot above. It mirrors the planet in various positions inits orbit. Polaris would be means off tothe left. The earth can be divided into2 halves, a phibìc hemisphere and a southern hemisphere. Due to the fact that the tilt of the planet is constantly pointedin the very same direction (toward Polaris), different hemispheres get an ext or lessdirect light ray at different times of the year.Look whereby it claims �summer� above.The direct rays the the sun are hitting the northern hemisphere. Except at the equator, the Southernhemisphere will certainly only get indirect rays.This is why we have summer in June; the planet is in this place in itsorbit. In Australia,which is in the southerly hemisphere, just indirect light is present, so theyexperience winter in June. Top top theopposite next of the orbit, whereby the diagram states �winter�, the Northernhemisphere is tilted far from the sun.The southern hemisphere is tilted toward the sun. This time, the southern gets an ext direct raysthan the North, so the is winter in the North and also summer in the South.

During spring and also fall, no hemisphereis tilted more toward the Sun. Directrays hit just at the tropic zones close to the equator.

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Indirect rays hit pretty lot everywhereelse. Therefore we have actually mildtemperatures in the north and south away from the equator.