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The Earth,Sun and Moon's Interactions.
Transcript of The Earth,Sun and Moon's Interactions.
The Earth axis is the imaginary line that goes through both ends of the poles
The earth's axis is tilted on a 23.5°
Because of this tilt the Sun's light strikes the earth at different angles throughout earths annual revolution around the sun
The equator is a invisible horizontal line dividing the earth R.R.T. and its affect on SEASONS
• A solar eclipse occurs when the Moon lies between the Sun and the Earth creating a huge shadow over the Earth
• The central dark part of the shadow is called the umbra and the area of partial shadow is called the penumbra.
• Depending on where you are the eclipse can last from a few seconds to a few minutes
• The umbra is typically 160km wide while the penumbra is typically 16000km long.
• WARNING: Never look directly at the sun during an eclipse, it can cause permanent damage to your eyes. R.R.T. and its affect on the DAY/NIGHT CYCLE Copernicus created a heliocentric model When the earth is tilting towards the sun the northern hemisphere experiences more sun (essentially the northern hemisphere is experiencing Summer)
When the earth is tilting away from the sun the northern hemisphere experiences less sun changing making the climate more cooler (essentially the northern hemisphere is experiencing Winter)
When the earth is tilting any way in between it experiences either Autumn or Spring
The southern hemisphere experiences the opposite seasons of what the northern hemisphere
Regions around the equator experience the sun's rays all year long meaning they experience Summer all year long However . . . When the northern hemisphere is undergoing Summer it experiences more light meaning longer days
When the northern hemisphere is undergoing Winter it experiences less light meaning longer nights
Annually both hemispheres experience a Summer and Winter Solstice
The Winter Solstice is when the night is at its longest
The Summer Solstice is when the day is at its longest
The northern hemisphere's Winter Solstice occurs on the 21st of December
The northern hemisphere's Summer Solstice occurs on the 21st of June
The Southern hemisphere experiences the opposite Solstices for example when the Northern hemisphere is experiencing their Winter Solstice the Southern hemisphere is experiencing their Summer Solstice The model had more to discover. Johnny Kepler discovered that the planets orbited in elliptical paths, not circles. This further strengthened the model's validity of ... this is us Formation of the Moon Surface of the Moon The solar system was cluttered with debris that ranged from small particles the size of grains of sand and rocks as big as planets. Giant impact theory ( ejected ring theory) Collisions occurred often between the materials in the crowded solar system . Scientists believed that a planetary body of similar size to Mars crashed into young Earth The intense impact was so strong that large sections of young Earth broke away and scattered into space. • Eventually the broken fragments turned into natural satellites orbiting the Earth and after millions of years they created the sphere we call the Moon The Moon’s surface is covered in large circular craters, Ancient lava flows and high mountains. Craters on the moon are caused by the bombardment of debris because it has no atmosphere to protect it When these patches were observed they thought they were oceans but it turned out they were just large, flat areas made of basalt. The dark patches on the Moon are called mare which is Latin for sea The celestial sphere is an imaginary grid that surrounds the earth.
This helps astronomers chart constellations, observe objects in the sky to figure out their distances, and observing nearby planets such as the moon.
However, the main job of the celestial sphere is to help astronomers look at starts, or other objects, and figure out their locations.
The celestial sphere is used in Spherical Astronomy. The Celestial Sphere Apparent
Motion Asteroids Asteroids: Can also be referred to as minor planets or dwarf planets, such as Pluto. There are many asteroids within our galaxy. These asteroids orbit in the asteroid belt between Mars and Jupiter. A majority of asteroids fall into three categories: C-type, S-type, and M-type. The only visible asteroid that can be seen with the naked-eye is the 4 Vesta. The reason is because of its very reflective and shiny surface. The Moon The Moon: The Moon orbits the Earth, and they share the same gravitational field. Scientists have evidence that the moon and the earth share a gravitational field. The evidence states that as the moon orbits the planet, the lunar gravity attracts the water in the oceans; causing the ocean levels to rise in some areas, but not in others. The Sun The Sun: The sun is the centre of our universe (as we know so far). This is means that all the planets, including earth, revolve around the sun. Because earth spins on an axis around the sun, this causes seasons (spring, summer, autumn, winter). As the earth revolves around the sun on a tilt, the sun hits the Earth at different spots causing it to be summer in one place, but winter in another. Planets Planets: Our solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, and Uranus (sorry Pluto). They all revolve in a clockwise manner around the sun. The planets closest to the sun: Mercury, Venus, Earth, and Mars tend to be hotter than the planets further from the sun: Jupiter, Saturn, Uranus, and Neptune. (Pluto is the furthest, but it is considered a dwarf planet now). Constellations Constellations: A constellation is a group of starts that form a distinctive pattern. Although the stars themselves do not move, they can-if you look closely-form patterns. Some examples of famous constellations include: The Big Dipper, Ursa Major, and The Great Bear. Comet Comets: A comet is a small solar system body (SSSB) made up of ice, dust, and small rocky particles. Comets are mostly found near the sun, but are common in the Milky Way also. When a comet gets close enough to the sun it displays a coma (thin, fuzzy, atmosphere) and sometimes a tail. Comets have a very bug range of orbital periods. Some can take hundreds of years, while other can take thousands. Scientists hypothesize that per year, only one comet can be seen; these comets are known as Great Comets. Solar Eclipse Lunar Eclipse There are times when Earth lies directly between the Moon and Sun. during a full moon phase
Earth's shadow is cast on the moon,causing the Moon to be blacked out.
A full lunar eclipse occurs when the Moon is covered by Earth's umbra.
The Earth and Moon moving out of the line with the sun and the Earth's shadow is faced on the Moon So these are the miraculous interactions between the Earth, Moon, and Sun