Phases of the Moon

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Phases of the Moon

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When the moon is between the Sun and the Earth, the side of the moon facing the Earth is dark. This is called as “New Moon”. As the Moon travels eastwards, more of its sunlit side becomes visible to us and it is said to be waxing. This phase after the new moon is called “Waxing Crescent”. As the moon continues circling eastward, the Sun, the Earth, and the Moon, form a 90 degrees angle and the moon appears half-dark and half-light to us on the Earth. This is called as “ Waxing Gibbous “ phase.

As the moon continues its revolution around the Earth, the Sun, the Earth and the Moon align with the Earth in the middle. The side of the moon facing the Earth is fully lit. This is called as a “Full Moon”. As the moon travels further in its orbit, the lit portion visible to us becomes smaller and smaller. The moon is now said to be waning. Once again, the moon appears half dark and half light to us on the Earth. This is called as “Waning Gibbous” phase. As the moon completes its revolution around the Earth, the moon enters a “Waning Crescent” phase just before starting the cycle again as a new moon.

New Moon

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New moon is the phase of the moon when the moon is not visible from Earth, because the side of the moon that is facing us is not being lit by the sun.

New Moon

Cresent Moon

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A crescent moon is part way between a half moon and a new moon, or between a new moon and a half moon.
Cresent Moon

Half Moon

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A half moon looks like a half circle (this Moon has completed one quarter of an orbit around the Earth).
Half Moon

Gibbous Moon

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A gibbous moon is between a full moon and a half moon, or between a half moon and a full moon.
Gibbous Moon

Full Moon

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A full moon appears as an entire circle in the sky.

Full Moon

 

Books about the Moon

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Links to other sites about the Moon

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View of Moon from Sun http://www.fourmilab.ch/cgi-bin
/uncgi/Earth/action?opt=-s&img=Moon.evif
View of Moon from Earth http://www.fourmilab.ch/cgi-bin
/uncgi/Earth/action?opt=-m&img=Moon.evif
The Moon http://www.enchantedlearning.com/subjects/
astronomy/moon/index.shtml
The Moon http://www.kidsastronomy.com/earth/moons.htm
Phases of the Moon http://www.windows.ucar.edu/tour/link=
/the_universe/uts/moon2.html&edu=elem
Eclipses http://www.scienceu.com/observatory/
articles/eclipses/eclipses.html
Eclipse Interactive http://highered.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/
sites/dl/free/0072482621/78778/Eclipses_Nav.swf::
Eclipse%20Interactive
Phases of the Moon
Interactive
http://highered.mcgraw-hill.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/
sites/dl/free/0072482621/78778/
Lunar_Nav.swf::Lunar%20Phases%20Interactive
 

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