Senin, 22 Oktober 2012

IPA

UNDERSTANDING MONTH
 Moon is a satellite of the earth, and therefore the moon around the earth. Circulation moon around the earth due to attractive forces between the Earth and the moon are called gravity.

ROTATION MONTH month rotation on its axis is the velocity of the month. Once a month round while taking 24 hours to circle around the Earth, the moon takes 27.3 days.When the moon is between the earth and the sun, the moon facing the earth will be dark because the moon is closer kematahari, this phase is called the new moon.The full moon is the moon shining bright as all parts of the moon facing the earth gets sunlight. There are two types of months are recognized by astronomers:a) Month sinodisNew moon phase next new moon 29.5 daysb) Sidereal MonthNew Sidereal orbital period 27.5 days. Sidereal month period where almost two days shorter than a month sinodis.


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