The moon orbits the Earth and makes a full revolution in a period of about 28 days. Since the moon does not produce it's own light, one side of the moon is always in sunlight at any given time. During the first two weeks of the lunar month (starting from New Moon), more of the sunlit portion can be seen from Earth - this is called "waxing". During the other two weeks, less of the sunlit portion can be seen from Earth and we refer to this as "waning".
The Moon waxes( grows from crescent to full) and then Wanes ( from full to crescent) every 28 1/2 days. The Moon is lit by the Sun and the Earth is often between the two causing the Earth to partially shadow the Moon's surface . Every evening a larger and larger portion of it is illuminated by the Sun until you see it as a Full Moon. The Shadow of the Earth now starts to shadow or 'occult' the moon from the opposite side until in complete shadow of the Earth. A New Moon appears a few days later.
New Moon
Two weeks, and two weeks to wane.
Two weeks
first quarter
The 29-day lunar cycle begins with the New Moon, and "waxes" or increases the illuminated part for 14.5 days until the Full moon. Then it "wanes" as the illuminated area of the Moon decreases until the next new moon.
The Moon waxes( grows from crescent to full) and then Wanes ( from full to crescent) every 28 1/2 days. The Moon is lit by the Sun and the Earth is often between the two causing the Earth to partially shadow the Moon's surface . Every evening a larger and larger portion of it is illuminated by the Sun until you see it as a Full Moon. The Shadow of the Earth now starts to shadow or 'occult' the moon from the opposite side until in complete shadow of the Earth. A New Moon appears a few days later.
New Moon
Two weeks, and two weeks to wane.
Two weeks after the waning gibbous phase of the moon you will see a new moon.
Two weeks
Two weeks
A solar eclipse can only occur at the moment of New Moon. Two weeks after that moment is about 18 hours before Full Moon.
Those are old English words for "growing" and "shrinking". When the moon is 'waxing', the lit-up portion is growing from day to day, and it's heading towards Full Moon. When the moon is 'waning', the lit-up portion is shrinking from day to day, and it's heading for New Moon.
first quarter
It took about 3 days for the various lunar missions to reach the moon.
== == An eclipse occurs because one heavenly body moves between another body and the Sun. For the Moon to be eclipsed, the Earth must be between the Moon and the Sun. For the Earth to be eclipsed, the Moon must be between the Earth and the Sun. Because the Moon orbits the Earth every four weeks, it will be on the opposite side of its orbit in two weeks. Therefore, a total eclipse of the Sun can be followed in two weeks by a total eclipse of the Moon.