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Luna: The Earth’s Moon

Luna: The Earth’s Moon. Earth’s Natural Satellite It may be the only one for us, but is one of many in our solar system. Unless otherwise noted, all pictures come from Microsoft Office ClipArt / Microsoft Online. LUNA : THE MOON OF THE EARTH. Luna: the name of the Earth’s moon

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Luna: The Earth’s Moon

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  1. Luna:The Earth’s Moon Earth’s Natural Satellite It may be the only one for us, but is one of many in our solar system. Unless otherwise noted, all pictures come from Microsoft Office ClipArt / Microsoft Online

  2. LUNA : THE MOON OF THE EARTH Luna: the name of the Earth’s moon Luna rocks are 4.6 billion years old, leaving scientist to understand that the solar system must be at least the same age. SURFACES Surfaces of bodies, without atmospheres, preserve their history. Scientist can tell the age of the body by the impacts without using rock samples

  3. LUNA : Origins of the Moon Lunar Origins Before rock samples, there were 3 ideas ** a separate body captured by the Earth’s gravitational pull ** the moon and Earth formed at the same time and from the same material ** the Earth was spinning so quickly that a piece flew off and became a moon

  4. LUNA : Origins of the Moon Apollo rock samples showed that the moon’s composition was similar to the Earth’s mantle, supporting the 3rd idea. Current theory is that a Mars sized object collided with the Earth while it was forming causing a piece of the molten mantle to be blasted into space and get caught in the Earth’s gravity and become its moon.

  5. LUNA : Data about the moon Period of Rotation: 27 days, 9 hours Period of Revolution: 27 days, 7 hours Surface gravity: 16% of Earth’s gravity Smaller in diameter than the Earth A natural satellite of the Earth, as it orbits the Earth. The moon has no water or atmosphere. Temperature range is: -1530 C to 1200 C.

  6. LUNA : Data about the moon Mercury and Venus are the only planets to have no moons, Pluto and Earth have only one moon, while the other planets have more than one. Craters are round holes on the moon’s surface, some caused from collisions others from volcanic eruptions. Maria (Latin for seas) are broad,flat plains on the moon.

  7. LUNA : Motions of the moon The moon rotates, like the Earth, on an axis; it rotates very slowly. One period of rotation is 27 and 1/3 days The moon revolves around the Earth, thus it is a satellite. One period of revolution is 27 1/3 days We always see the same side of the moon. Apogee is when the moon is farthest from the Earth. Perigee is the point at which the moon is closest to the Earth.

  8. LUNA : Motions of the moon When at apogee, farthest from the Earth, the moon is 409,000km away. When at perigee is the point or closest to the Earth, it is 365,000 km away. These differences are caused by the moon’s orbit, which is elliptical. The moon appears to rise in the East and set in the West; due to the Earth’s rotation, this occurs about 50 later each day.

  9. http://www.google.com/imgres?imgurl=http://addins.kwwl.com/blogs/intheknow/wp-content/uploads/2010/08/moon-path.gif&imgrefurl=http://addins.kwwl.com/blogs/intheknow/category/fun-facts/page/2&usg=__XkAh4uGhRXYlstbHGrIDhYFdklw=&h=220&w=400&sz=7&hl=en&start=0&zoom=1&tbnid=qxyTYKBtGdmAyM:&tbnh=104&tbnw=189&prev=/images%3Fq%3Dmoon%2Bapogee%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26channel%3Ds%26biw%3D1024%26bih%3D611%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=109&vpy=256&dur=241&hovh=166&hovw=303&tx=171&ty=89&ei=YiojTatehPvwBsvC_dkN&oei=YiojTatehPvwBsvC_dkN&esq=1&page=1&ndsp=13&ved=1t:429,r:4,s:0http://www.google.com/imgres?imgurl=http://addins.kwwl.com/blogs/intheknow/wp-content/uploads/2010/08/moon-path.gif&imgrefurl=http://addins.kwwl.com/blogs/intheknow/category/fun-facts/page/2&usg=__XkAh4uGhRXYlstbHGrIDhYFdklw=&h=220&w=400&sz=7&hl=en&start=0&zoom=1&tbnid=qxyTYKBtGdmAyM:&tbnh=104&tbnw=189&prev=/images%3Fq%3Dmoon%2Bapogee%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26channel%3Ds%26biw%3D1024%26bih%3D611%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=109&vpy=256&dur=241&hovh=166&hovw=303&tx=171&ty=89&ei=YiojTatehPvwBsvC_dkN&oei=YiojTatehPvwBsvC_dkN&esq=1&page=1&ndsp=13&ved=1t:429,r:4,s:0 http://www.calendrier-lunaire.fr/uploads/images/Anglais/Ang%20apog.jpg

  10. LUNA : Phases of the Moon Appearance: From the Earth, the moon appears to always be changing, from an Earthward facing circle to a crescent and back to a circle again. The changing shape is due to how it reflects light from the sun and its position in relationship to the Earth. These changes are called PHASES

  11. LUNA : Names of the Moon Phases Crescent is when the moon is less than half full, such as in the first and last picture below. Gibbous is when more than half of the moon is visible, such as in the 3rd & 5th picture below. Waxing refers to when the moon is growing in size Waning refers to the shrinking moon

  12. LUNA : Names of the Moon Phases The Quarter moon refers to either the first or last quarter, in other-words, the moon is either one quarter or three quarters though its cycle of phases. The 2nd and 6th pictures show the first and last quarter. Naming moon phases: combine the shape with waxing or waning.

  13. LUNA : Names of the Moon Phases When no moon is visible, it is known as a new moon; the moon is positioned between the Earth and the sun. When the entire moon is visible, it is known as a full moon; the moon is behind the Earth positioning the Earth between the moon and the sun.

  14. Phases in a minute FIRST QUARTER WAXING GIBBOUS FULL MOON WAXING CRESCENT WANING GIBBOUS LAST QUARTER WANING CRESCENT NEW MOON Ask AnAstronomer Moon Phases

  15. http://www.youtube.com/watch?v=wHxcWSiD_4E LUNA : Lunar Eclipses A lunar eclipse is the passing of the moon through the shadow of the Earth. Penumbra - light part of a shadow Umbra - dark part ofa shadow. Just like you, the Earthcast a shadow due to blocking the light from the sun.

  16. LUNA : Lunar Eclipses The moon usually passes above or below the shadow of the Earth, however at times is passes directly through the Earth’s shadow. This results in the Earth blocking the light that normally reaches and illuminates the moon. A lunar eclipse can only occur during a full moon.

  17. http://www.youtube.com/watch?v=wHxcWSiD_4E Ask anAstronomerLunar Eclipse LUNA : Lunar Eclipses When part of the moon passes through the Earth’s umbra, it causes a partial eclipse. When the entire moon passes through the Earth’s umbra, a total eclipse occurs. Due to the tilt of the moon’s orbit, around the Earth, eclipses can’thappen during every new or full moon.

  18. LUNA : Solar Eclipses During an eclipse a celestial body passes between another celestial and shadows are cast. During a solar eclipse the moon passes between the Earth and the sun. The result is a shadow that lands on the Earth; this is from the moon blocking the sun’s light.

  19. LUNA : Solar Eclipses During a solar eclipse, the moon may not completely cover the sun, leaving a ring around the sun that is visible. A total solar eclipse occurs when the entire face of the sun is covered by the moon, while a partial eclipse covers only a portion of the sun’s face..

  20. LUNA : Tides and Gravity The water level of the ocean rises and falls throughout the day, this change is called tides. Low water level is low tide  (ebb tide)  High water level is high tide (flood tide) There are 2 high tides and 2 low tides each day. They change about every 6.25 hours.

  21. LUNA : Tides and Gravity Tides and gravity are closely related, as it is gravitational force that pulls at the waters. The portion of the Earth that faces the moon will have a high tide, as will the opposite side of the Earth. The portions of the Earth between the high tides will have low tides.

  22. LUNA : Tides and Gravity Tides are impacted by the location of the moon, Earth and sun. Higher water levels are found during a full or new moon high tide as compared to the water levels of a high tide during the 1st and last quarter moons. Higher levels are also found during perigee, when compared to apogee tides.

  23. The tides and currents are greatest during spring tides (full & new moon) • smallest during neap tides (first & third quarter). • Tide height can increase by about 50% during spring tides. • During a full moon the night high tide will be higher than the day high tide • During a new moon the day high tide will be greater than the night high tide. Text and Pictures: http://www.atlantickayaktours.com/pages/expertcenter/navigation/navigation-04.shtml

  24. What do I see? Last Quarter C Waning Crescent Waning Gibbous D B E A Full Moon New Moon F H Waxing Crescent Waxing Gibbous G First Quarter

  25. The Moon is the Earth’s only natural satellite. A natural satellite is a space body that orbits a planet, a planet like object or an asteroid. • It is the fifth largest moon in the Solar System. Learn more about the other moons in the Solar System. • The average distance from the Moon to the Earth is 384403 kilometres (238857 miles). • The Moon orbits the Earth every 27.3 days. • Mons Huygens is the tallest mountain on the Moon, it is 4700 metres tall, just over half the height of Mt Everest (8848m). • The Moon rotates on its axis in around the same length of time it takes to orbit the Earth. This means that from Earth we only ever see around 60% of its surface (50% at any one time). • The side that we can see from Earth is called the near side while the other side is called the far side (it is sometimes called the dark side despite the fact that it illuminated by the Sun just as much as the near side). • The effect of gravity is only about one fifth (17%) as strong on the surface of the Moon compared to the strength of gravity on the surface of the Earth. • The Soviet Union’s Luna program featured the first successful landing of an unmanned spacecraft on the surface of the Moon in 1966. • The USA’s NASA Apollo 11 mission in 1969 was the first manned Moon landing. • The first person to set foot on the Moon was Neil Armstrong. • The far side of the Moon looks quite different due to its lack of maria (ancient pools of solidified lava). • The surface of the Moon features a huge number of impact craters from comets and asteroids that have collided with the surface over time. Because the Moon lacks an atmosphere or weather these craters remain well preserved. • Although research is continuing, most scientists agree that the Moon features small amounts of water. • The Moon is very hot during the day but very cold at night. The average surface temperature of the Moon is 107 degrees Celsius during the day and -153 degrees Celsius at night. • The Earth’s tides are largely caused by the gravitational pull of the Moon. • The phases of the Moon are: New Moon, Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, Crescent, New Moon…. • A lunar eclipse occurs when the Earth is between the Sun and the Moon.

  26. http://www.youtube.com/watch?v=wHxcWSiD_4E Ask anAstronomer

  27. MOON FACT / DATA INTERNET LINKS MOON FACTS http://resources.woodlands-junior.kent.sch.uk/time/moon/facts.htm MOON ANIMATION http://astro.unl.edu/naap/lps/animations/lps.swf Moon Phase Demonstration http://www.youtube.com/watch?feature=endscreen&NR=1&v=FI2tP8dpwNA Moon with Rotation Demonstration http://www.youtube.com/watch?feature=endscreen&v=OZIB_leg75Q&NR=1

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