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Chapter 24 Vocabulary for ISN Please glue the TERMS to the page! Match the term with the definition and use the definition as a flap OVER the term. He stated that the planets had circular orbits around the Sun. It was called the Sun Centered Model of the solar system. The name given to small pieces of a comet when they move through space. The largest volcano in the solar system. It was discovered by Mariner 9 on the surface of Mars. It is probably not an active volcano. U.S. probe that used it’s radar in 1990 to make very detailed maps of Venus’s surface. It collected radar images of 98% of the surface of Venus. the fifth planet from the Sun, the largest planet in the solar system, has an atmosphere that is primarily hydrogen and helium, may have a solid rocky core, has constant high-pressure gas storms like the Great Red Spot, has at least 61 moons. The largest of Neptune’s 13 moons. It has a thin atmosphere composed of Nitrogen. a rock similar to that This planet is usually the eighth planet which formed from the Sun, it is planets. Most of large and gaseous, it these lie between has a bluish-green Mars and Jupiter. atmosphere, it has Some planets’ moons storms that reveal may be one of these that was pulled from an active and rapidly the belt. Their sizes changing atmosphere, range from very tiny it has 11 moons, and pinkish Triton is the to 940 km in largest. diameter. A large, continuous, high pressure, gas storm on Jupiter. This includes the Sun, eight planets, many small objects, and a huge volume of space. The Sun is the center and all other objects revolve around the Sun. This landform was created about 50,000 years ago when a large meteorite struck the Earth in Arizona. beyond the planets in our Solar System, starting from about the orbit of Neptune, 30-50 AU from the Sun. It is like the asteroid belt, but it is about 200 times as massive. Like the asteroid belt, it consists of remnants from the Solar System's formation. This was the first American space mission to Mercury in 1974-5. It photographed about 45% of Mercury’s surface and sent pictures back to Earth. An area between the orbits of Mars and Jupiter that is full of pieces of rock that are similar to the material that formed the planets. seventh from the sixth planet from the Sun, the second largest Sun, this large in the solar system, has gaseous planet, has thin, dark rings, has the lowest density, has a thick outer a hydrogen, helium, atmosphere of methane atmosphere. hydrogen, helium, The methane makes ammonia, methane, and the planet blue-green water vapor, has large in color. The axis of rings has at least 31 rotation is nearly moons, largest moon is parallel to the plane larger than the planet Mercury. of orbit. This is considered one of the three dwarf planets. It is occasionally closer to the Sun than Neptune. It has a solid, rocky surface and a thin atmosphere and it has three moons. The largest of the two Martian moons. It is about 25 KM in length and appears to have grooves and chains of smaller craters that seem to radiate out from a large crater called the ‘Stickney Crater’. a large dirty snowball of dust, rock particles, frozen water, methane, and ammonia. The ice and dust vaporize forming a bright cloud called a coma around the nucleus. We have a famous one that orbits the Sun every 76 years. The largest of Saturn’s 47 moons. It is larger than the planet Mercury and has a thick atmosphere of nitrogen, argon, and methane. T One of the dwarf planets. It was discovered in 1801 and has an average diameter of 940 KM. It is located within the asteroid belt and orbits the sun about once every 4.6 years. The name given to a meteoroid that gets through the atmosphere and strikes Earth. a cloud of gas and dust in space. Some are regions where new planets or stars are being formed, while others are the remains of dead or dying planets or stars. They are the first and last stage in the life of stars and planets! The name given to small meteoroids that burn up in Earth’s atmosphere. fourth planet from the Sun, called the red planet because iron oxide in rocks makes them has polar ice caps reddishyellow, made mostly of frozen CO2 and frozen water, has the largest volcano in the solar system, has a thin atmosphere of mostly carbon dioxide, is tilted on its axis, which causes seasons, has two small moons, Phobos and Deimos. This planet is second from the Sun, similar to Earth in size and mass, has an extremely dense atmosphere of clouds, it has high levels of carbon dioxide gas that trap solar energy. Discovered by two amateur astronomers in 1995. It was the brightest comet visible from Earth in 20 years. A large group of comets surrounding the solar system beyond Pluto. As a comet nears the Sun its ices turn into gases and plasma. These gases form a large glowing "head" around the comet that is called a "coma". These gasses will trail behind the comet forming a tail. The coma and tail make comets look fuzzy as they near the Sun. the third planet from the Sun, water exists on this planet surface as solid, liquid, and gas, 70 percent of the planet is covered with water, has an atmosphere that protects the surface from most meteors and the Sun’s radiation. This planet is closest to the Sun, the 2ndsmallest planet, has a weak magnetic field that suggests an iron core, has many craters and high cliffs, has no true atmosphere, so surface temperatures range from very hot to very cold. a German mathematician who discovered that the planet orbits were elliptical and that the Sun was not in the center of the orbits. He also found that planets don’t orbit the Sun at the same speed. Johannes Kepler Uranus Comet Copernicus Titan Asteroid Belt Mars Meteorite Hale-Bopp Phobos Ceres Mariner 10 Coma nebula Kuiper belt Triton (in astronomy) Solar System Jupiter Pluto Earth Neptune Oort Cloud Saturn Mercury Asteroid Olympus Mons Magellan Barringer Crater Meteoroid Venus Meteor Great Red Spot