The earth's orbit around the sun, what happened?
.Because of the tilt of the earth's axis angle 23 1 / 2 degrees, makes the movement of the earth by the earth's axis to point to point ใดจุด one in the sky just a single point. The axis of the earth one side will lean toward the sun.The results of the trajectory of the earth around the sun can cause. Variation of the night and day. The variation of long length of night and day when the earth orbits the sun, in the northern hemisphere in winter.The long length of time at night. So in winter in the North Pole will be a night to 24 hours. In contrast, during the summer. From the tilt of the North Pole will be facing the sun and the earth24 hours commonly known. "Land of the midnight sun." For in the southern hemisphere can explain such phenomena as well as the northern hemisphere, on the other hand, season of birth on earth (Season).The season was born on earth in the different periods and the different season, including during the months of December. The world turned away from the sun to get North side light.After February world gradually. Turned sideways toward the sun makes the equator are light from the sun, the vertical March - may, therefore, be area of summer.During June - August. The earth turns toward the sun, the north side of The northern hemisphere is heated by the sun in a high ratio. Result in the Northern Hemisphere temperature rises. The northern hemisphere is summer.From September onwards, the world starts to orbit by Ben side toward the sun. Make light vertically of the sun gradually moved down south, the temperature of the northern hemisphere gradually decreased in the period (September to November).The height of the sun at noon. In the light of the sun will light vertically incident along the equator in 1 years, 2 days only, is on 21 March and the 23 September. We run two today that the vernal equinox (Equinox).(Equinox means rate) by the 21 March (rainy season) called day vernal equinox (Vernal Equinox) และวันที่ 23 September. (Autumn) called the day, autumnal equinox (Autumnal Equinox) to explain the high of the sun at noon.(the 21 March). Which of the will that the equatorial region of the world will be the light falling from the sun. The daytime at night. If the coordinates is the light of equatorial (0 degrees fit).Moving to the left, to the 21 June, it can be seen that the tilt of the earth's axis. The north pole facing the sun could receive light vertically from the sun most. If we observe from the phenomena in the sky in the 21.The sun will move to the left end of the sky, we call the 21 June that the Sri ษมา Yan (Summer Solstice) (Si ษมา Yan From customs Tarif means hot ascetic means arrived).And hours of the day than the night, until the day 23 September. That day the world will orbit position of the day, autumnal equinox (Autumnal Equinox) which is at any hour of the day as the middle night again.Then the earth's orbit to the right hand, or in the direction clockwise until the 22 December. The light of the sun is moving to the South). When the tilt of the earth's axis, resulting in the South Pole. The light from the sun. ")The South Pole will have hours of the day and so we call on 22 December of each year that the Mao Yan (Winter Solstice) (like means cold. Ascetic means comes, the winter solstice, means the winter comes) from such phenomena in the 22 December.Deviation to the south, or we call "the sun passes under it!"
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