Moon

Months including a dark sky object, because it only gets light from the sun.
Sunlight received by the moon reflected all these directions, in part reflected light will hit the earth. When viewed from Earth, the moon, as if glowing.
During the months of orbit around the earth, sometimes months to receive light from the sun completely, and sometimes do not receive light from the sun at all, due to blocked by the earth.

During the months of moving, a change in the angle between the position of the sun, moon and earth.
Change can be observed from day-kehari, among others:

- Moon is not visible from earth because the moon's position lies between the sun and the earth.
Consequently the evenings become darker, a condition termed the month of death or new moon.

- Month to continue its journey around the Earth, one or two days later the moon moves form a different angle from the earth. We can only see a small portion side of the moon affected the sun, this state is called the crescent.

- After the seventh day, we can see half of the affected side of the moon light, this state is called a half moon.

- After approaching day-to-fourteen, the moon formed three quarters of the circle, this state is called a moon stooped.

- After an even traveled 14 days, the moon was doing half way around the earth. In these circumstances, the side facing the earth is exposed to sunlight, kedaan like this is called a full month (full moon).

- Month resume its journey around the earth half. form that occurs will be returned to his original position.