Phases of the Moon
As the Moon moves in space, different parts of it face the Sun. This means that different parts of it are lit up. The same phases happen again and again, every 29.5 days, approximately. The phases of the moon looks like a circular disk, which is lit up to some degree by direct sunlight.
Another, different, fact is that we only see one side of the moon from Earth. It orbits round the Earth, but it does not rotate around its own axis.
Moon Changes[change | change source]
- Waxing is when the part of the moon that we can see gets bigger every night. It waxes until it is a full moon.
- Waning is when the moon appears to be getting smaller in size every night.
Phases[change | change source]
There are 8 total phases that the moon goes through.
- The new moon is when the moon is all dark. None of the moon that we can see is lit up during the new moon.
- A crescent moon is when the moon is between the new and quarter moon stages.
- The quarter moon (or a half moon) is when half of the moon is visible. If the moon is waxing, it is called the first quarter, if the moon is waning, it is the last quarter
- A gibbous moon is between the quarter and full moon stages. More than half of the moon can be seen, but not all of it.
- The full moon is when the moon is all lit up. All of the moon that we can see is lit up by the Sun during the full moon.
References[change | change source]
- However, a blue moon can also refer to the third full moon in a season with four full moons.
- Sinnott, Roger W., Donald W. Olson, and Richard Tresch Fienberg (May 1999). "What's a Blue Moon?". Sky & Telescope. http://www.skyandtelescope.com/observing/objects/moon/3304131.html?showAll=y&c=y. Retrieved 2008-02-09. "The trendy definition of "blue Moon" as the second full Moon in a month is a mistake."