retinue of objects that orbit the Sun‚ most of the mass is contained within eight (8) relatively solitary planets whose orbits are almost circular and contained within a nearly-flat disc called the ecliptic plane. The four smaller inner planets; Mercury‚ Venus‚ Earth and Mars‚ also called the terrestrial planets‚ are primarily composed of rock and metal. The four outer planets‚ Jupiter‚ Saturn‚ Uranus and Neptune‚ also called the gas giants‚ are composed largely of hydrogen and helium and are far
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Titan‚ is the only moon in the Solar System to possess an atmosphere. FACT NINE Saturn has such a low density (meaning that its particles are far apart) that‚ if there was an ocean big enough‚ Saturn would float on it. In comparison‚ Earth and Mercury would sink to the bottom quickest. FACT TEN A year on Saturn would take almost thirty Earth years. However‚ a day on Saturn is about 10 and a half
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are Jupiter‚ Saturn‚ Uranus‚ Neptune‚ Earth‚ Venus‚ Mars‚ and Mercury. 4. What is the basis for classifying a planet as an inner or an outer planet? Which are the inner planets? The outer planets? ANS. The Mercury‚ Venus‚ Earth‚ and Mars are called the inner planets. The outer planets are Jupiter‚ Saturn‚ Uranus‚ and Neptune. 5. Which Planets are small? Large? Which are Earth-like planets? ANS. The small planet is Mercury. The large planet is Jupiter. The inner planets are also called
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Planetary Study Guide Mercury * As seen from Earth: * Orbital period of 88 days; rotation to orbit is a 3:2 ratio * Distance from Sun: 0.31 AU to 0.46 AU from the Sun * Eccentric orbit: close and far away (perihelion and aphelion) * 7 percent to the ecliptic * Visible by the naked eye just before sunrise or just after sunset (when the Sun’s light is blotted out) * Never far from the Sun * As a physical body: * Small (about 0.055 Earth’s
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between Foci 5‚083‚000 km 5. The eccentricity of Earth’s orbit is less than the eccentricity of the four ellipses I drew. 6. The Earth’s orbit is more round. I know this because the lesser the number‚ the more rounder the circle would be. 7. Mercury has an eccentricity most similar to the ellipses I drew. 8. If I was to draw the Earth’s orbit‚ a star would be one of the foci. 9. Upon completion of this lab exercise‚ I was able to: 1- Define the words: eccentricity‚ ellipse‚ and foci. 2-
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rotation‚ solid surfaces‚ no rings‚ and few satellites. These planets include Mercury‚ Venus‚ Earth‚ and Mars. On the other hand‚ the jovian planets are composed primarily of hydrogen and helium. They generally have low densities‚ rapid rotation‚ deep atmospheres‚ rings‚ and numerous satellites. These planets include Jupiter‚ Saturn‚ Uranus‚ and Neptune. The closest terrestrial planet to the sun is Mercury. Mercury is relatively small‚ and technically the eighth largest of all the planets.
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surface on Saturn reach -275 degrees Fahrenheit. Saturn has about 47 moons or more that are made of rock and ice. It is said that meteors probably hit Saturn ’s moons. The largest of Saturn ’s moons is named Titan. Titan is larger than the planet Mercury. Titan is the second largest moon in our Solar System. Titan ’s atmosphere is orange. We cannot see the surface of Titan because of the thick atmosphere. The smallest moon on Saturn is called Pan. It is only 12 miles wide. About 35 of Saturn ’s moons
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Abstract Why is Earth the only planet in our solar system capable of sustaining life? Why is Earth the only planet in the solar system that has plentiful liquid water and an atmosphere that can protect the planet from the harmful ultra-violet rays of the Sun? What makes Earth so special? These are some of the questions that will be explored in greater detail as we use Comparative Planetology to understand what makes Earth a habitat for life and what makes it so different from the other planets
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Name: ______________________________________ Date: ________________________ Student Exploration: Solar System Explorer Vocabulary: astronomical unit‚ dwarf planet‚ eccentricity‚ ellipse‚ gas giant‚ Kepler’s laws‚ orbit‚ orbital radius‚ period‚ planet‚ solar system‚ terrestrial planet Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. List all of the planets you can think of in our solar system. Try to list them in order from closest to farthest from the Sun. _______________
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Mercury is the second smallest planet in the solar system. It is 4‚879 kilometers across. Compare that with our moon‚ which is 3456 km across‚ and you can see that mercury is not very big. In fact‚ Jupiter’s moons Ganymede and Callisto and Saturn’s moon Titan are bigger! Even though those moons are bigger‚ Mercury weighs a lot more than they do because it is made of mostly metal and rock. In fact‚ Mercury has the most metals for its size of any planet in the solar system. Mercury is also the closest
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