Earth rotates around the sun as its orbit takes 365.25 days to complete one round each calendar year is 365 days, which means that 1/4 of the remaining days each year. This is a special day each year for four years, is said to have 366 days is February has 29 days instead of 28 days as usual. According to Kepler's discovery of Earth's orbit is not circular. In December, it is closer to the Sun than June. It is far from the sun as possible. The world will tilt in the axis. In June Northern Hemisphere is tilted toward the sun so. Northern Hemisphere to the Southern Hemisphere's summer, and it was winter. In December, the tilt of the sun. Making the Northern Hemisphere winter and the Southern Hemisphere's summer. In March and September Hemisphere is tilted toward the sun. Day and night are of equal length. In March Northern Hemisphere, it is spring. And the southern hemisphere autumn. In September The situation will turn around the world last year 4700 the world is not a sphere altogether. Circumference at the equator is 40,077 kilometers long (24,903 miles) long and depolarized the 40,009 kilometers (24,861 miles) of other planets. It has its own seasons and the phases of the revolution. The length of time it is a planet revolving around the sun cycle. If you were on Mercury Year to date, only 88 of the world's top stars, a planet outside the pool to one year is equal to 248 days on Earth, the moon, the moon is a satellite of the Earth. Orbiting the Earth every 27 days and 8 hours while rotating around its own axis is fully fitted with one round. We see the same moon. Whether viewed from any part of the world. The other half Human barely see When a spacecraft in space. On the lunar surface is very hot in the sun. And cold in the River of Shadows. The surface of the moon has many craters holes. Tens of thousands of wells From hole to hole a large volcano and arid desert moon, the stars are the largest. And the brightest in the night sky Moon Shine But light is not emitted from the moon itself. When the moon was reflecting light from the sun would come out. The moon is closer to Earth the most. It is also a very large distance. Ten times the circumference of the earth is shorter than the distance from Earth to the moon of the lunar cycle , we know that. If the lunar month Then the moon to orbit around one half lasted 29 days, if we count the beginning of the lunar month outage (New moon) is over the moon. Is a straight line between the Earth and the sun. The moon light The world has not seen the moon. Then it was back up a little. We see a bright crescent moon on the western horizon. And the moon rises from the horizon to the west. Easterly With a fraction more light. By the early evening moon will light up 7-8 in the middle of the sky, just half (Quarter) days later to add a fraction of the light increases. Until evening, the moon will rise 14-15 at the line. Between the Sun and Earth The moon was so bright full moon (Full moon) The moon is waning. The moon will be delayed indefinitely. He disappeared in the sky to see the moon. Then restart As such indefinitely The moon phases Because the moon orbits Earth as it orbits the first round itself the first fit, which takes about one month, so we see the moon, only one-half the time.
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