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The Moon main source: http://www.thesciencequeen.net/7Units.htm. It's Just a Phase It's Going Through. Moon . Our planet's large natural satellite, the Moon, is the easiest astronomical object to observe. The only "scientific instrument" you'll need at first is a pair of eyes. .
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The Moonmain source:http://www.thesciencequeen.net/7Units.htm It's Just a Phase It's Going Through...
Moon • Our planet's large natural satellite, the Moon, is the easiest astronomical object to observe. • The only "scientific instrument" you'll need at first is a pair of eyes. Picture from NASA
The Moon's Orbit • Rotation • Moon is spinning on its axis • Revolution • The moon orbits around the Earth • It takes the moon approximately one month to go around the Earth.
How do we see “moonlight” • The moon doesn’t create its own light…it just reflects the light of the sun. • The phases of the moon are simply created by its location in relationship to the Earth and sun. • The moon passes through 8 major phases during a cycle that repeats itself approximately every month.
Vocabulary…. • New Moon • Waxing • Waning • Crescent • Gibbous • Blue Moon • Synchronous Rotation • Near side and far side of the moon
Phases • We only ever see the “near” side of the moon. • http://starchild.gsfc.nasa.gov/docs/StarChild/questions/phases.html http://www.moonphases.info/images/moon-phases-diagram.gif
E Waxing (growing) • When the part of the moon that you can see is getting bigger • When the moon is between new & full, the visible part of the moon is increasing. Sunlight
E Waning (shrinking) • When the part of the moon that you can see is getting smaller • When the moon is between full & new, the visible part of the moon is decreasing. Sunlight
Crescent Moon (less than half the moon is visible) • When the moon is between New & 1st Quarter it is called a waxing crescent. • When the moon is between 3rd & New it is called a waning crescent.
Gibbous Moon (when more than half of the moon is showing) • When the moon is between 1st Quarter & Full it is called a waxing gibbous. • When the moon is between Full & 3rd it is called a waning gibbous.
New Moon • New moon occurs when the moon is between the sun & the Earth. • 1st phase – day 1 • On the months where the alignment is exact, the moon blocks the sun and we get a solar eclipse • Moon rises and sets at the same time of the sun, will be directly overhead at noon.
Waxing Crescent • Occurs about day 4 of the moon cycle • Happens after the New moon • Right side crescent is visible • 2nd phase
First Quarter Moon • Occurs when the moon has revolved 90 degrees from the earth and the sun. • Happens around day 7 of the moon cycle • Can see half of moon (right side) • 3rd phase https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQCLqZ-XmKiPXddJ6ZEt14kqEf6IZCF7-FIqaC5CnNCwmARDMS5BQ
Waxing Gibbous • Can see roughly ¾ of the moon (right side) • Happens around day 10 of the moon cycle • 4th phase https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQLScN9aQqKofSNBq-rrnBmVrJBu1LeEv_YVg1zV8o24UTFgc9s
Full Moon What we see • The full moon occurs when the Moon & the Sun are on opposite sides of the Earth. • 14 days into the cycle • 5th phase • On the months where the alignment is exact, the earth blocks the sun from the moon causing a lunar eclipse
Full Moon • The full moon is given different names, depending on when it appears. For example, the "Harvest moon" is the full moon that appears nearest to the Autumnal Equinox, occurring in late September or early October. Some other full moon names (by month) include • January Moon After Yule, Wolf Moon, or Old Moon • February Snow Moon or Hunger Moon • March Sap Moon, Crow Moon, or Lenten Moon • April Grass Moon or Egg Moon • May Milk Moon or Planting Moon • June Rose Moon, Flower Moon, or Strawberry Moon • July Thunder Moon or Hay Moon • August Grain Moon or Green Corn Moon • September Fruit Moon or Harvest Moon • October Harvest Moon or Hunter's Moon • November Hunter's Moon or Frosty Moon, • December Moon Before Yule or Long Night Moon.
Blue Moon • When there is more than one full moon in a month, the second moon is called a blue moon. • A blue moon happens every two years on average. • The phrase, “Once in a blue moon” means very rarely or very seldom or almost never.
Waning Gibbous • Can see roughly ¾ of the moon (left side) • Happens around day 18 of the moon cycle • 6th phase https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRYDSV6BNjnIKDz70FrpgDXQ8rKocNBmlG6nOqaIrwE4fLJjciA
Third Quarter Moon • Occurs when the moon is in between the full moon and new moon. • Around day 22 • Can see half of moon (left side) • 7th phase
Waning Crescent • Left side crescent is visible • Day 26 of cycle • 8th phase
New Moon… Again • New moon occurs when the moon is between the sun & the Earth. • 1st phase
The phases always follow one another in the same order… Moon Movie
Why do we never see the DARK SIDE? • Synchronous Rotation is the reason we never see the dark side of the moon. • Over the millennia, the Moon has become "locked" into a special kind of motion around the Earth. • It rotates on its axis at the same pace as it revolves around the Earth • As a result, the Moon keeps the same face toward us throughout its orbit.