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PowerPoint
... astronomers need to make on of two choices: allow the possibility of many, many more planets create a more restrictive definition of planet ...
... astronomers need to make on of two choices: allow the possibility of many, many more planets create a more restrictive definition of planet ...
Dwarf planets and small solar system bodies
... the orbit of Neptune. It extends from the orbit of Neptune (30 AU) out to around 50 AU from the Sun and contains hundreds of millions of small icy bodies. http://theplanets.org/kuiper-belt/ . Michael Müller tells more. ...
... the orbit of Neptune. It extends from the orbit of Neptune (30 AU) out to around 50 AU from the Sun and contains hundreds of millions of small icy bodies. http://theplanets.org/kuiper-belt/ . Michael Müller tells more. ...
answer key
... - During most of a comet's orbit, far from the Sun, only its frozen nucleus exists. (It’s like one of Uranus or Neptune’s small icy moons, only it’s orbiting the Sun instead of a planet. These moons would grow tails if they ever got as close to the sun as comets get!) - When a comet is 3-4 AU from t ...
... - During most of a comet's orbit, far from the Sun, only its frozen nucleus exists. (It’s like one of Uranus or Neptune’s small icy moons, only it’s orbiting the Sun instead of a planet. These moons would grow tails if they ever got as close to the sun as comets get!) - When a comet is 3-4 AU from t ...
Universe 8e Lecture Chapter 14 Uranus, Neptune, Pluto
... Triton has a young, icy surface indicative of tectonic activity. The energy for this activity may have been provided by tidal heating that occurred when Triton was captured by Neptune’s gravity into a retrograde orbit. Triton has a tenuous nitrogen atmosphere. ...
... Triton has a young, icy surface indicative of tectonic activity. The energy for this activity may have been provided by tidal heating that occurred when Triton was captured by Neptune’s gravity into a retrograde orbit. Triton has a tenuous nitrogen atmosphere. ...
UBD - Solar System
... What causes objects in the solar system to move the way they do? Why do some objects have more gravity than others? How does the gravity of an object affect other objects in the solar system, including astronauts? What is the difference between a star, a planet and a moon? What are the names of the ...
... What causes objects in the solar system to move the way they do? Why do some objects have more gravity than others? How does the gravity of an object affect other objects in the solar system, including astronauts? What is the difference between a star, a planet and a moon? What are the names of the ...
Formation of the Solar System
... a. Students use the model to describe that gravity is a predominantly inward-pulling force that can keep smaller/less massive objects in orbit around larger/more massive objects. b. Students use the model to describe that gravity causes a pattern of smaller/less massive objects orbiting around large ...
... a. Students use the model to describe that gravity is a predominantly inward-pulling force that can keep smaller/less massive objects in orbit around larger/more massive objects. b. Students use the model to describe that gravity causes a pattern of smaller/less massive objects orbiting around large ...
28.1-notes - Stout Middle School
... of this debris diminished as it crashed into planets or was diverted out of the solar system. Some of the debris that remained became icy objects called comets. Other debris formed rocky planetesimals called asteroids. Most asteroids are found in the area between Mars and Jupiter known as the astero ...
... of this debris diminished as it crashed into planets or was diverted out of the solar system. Some of the debris that remained became icy objects called comets. Other debris formed rocky planetesimals called asteroids. Most asteroids are found in the area between Mars and Jupiter known as the astero ...
The outer planets
... The outer planets • The outer planets are the planets found after the asteroid belt • Not counting Pluto, the outer planets are giant, gas or ice planets • Pluto was demoted to a dwarf planet in 2006 ...
... The outer planets • The outer planets are the planets found after the asteroid belt • Not counting Pluto, the outer planets are giant, gas or ice planets • Pluto was demoted to a dwarf planet in 2006 ...
Lesson 2 Power Notes Outline
... As the sun was forming, dust grains collided and stuck together to form dust granules, which increased in size to form meter-sized bodies. ...
... As the sun was forming, dust grains collided and stuck together to form dust granules, which increased in size to form meter-sized bodies. ...
Lecture 7 - University of Minnesota
... • Saturn is very similar to Jupiter • Uranus and Neptune don’t have metallic or liquid layers, although their cores might be ...
... • Saturn is very similar to Jupiter • Uranus and Neptune don’t have metallic or liquid layers, although their cores might be ...
Gravitation
... Designed and built a device for measuring stellar objects Recorded stellar positions for 20 years Johannes Kepler (German) Brahe’s assistant that inherited amassed data Studied inherited data ...
... Designed and built a device for measuring stellar objects Recorded stellar positions for 20 years Johannes Kepler (German) Brahe’s assistant that inherited amassed data Studied inherited data ...
Chapter 12 Remnants of Rock and Ice What are asteroids like
... • Pluto will never hit Neptune, even though their orbits cross, because of 3:2 orbital resonance • Neptune orbits three times during the time Pluto orbits twice ...
... • Pluto will never hit Neptune, even though their orbits cross, because of 3:2 orbital resonance • Neptune orbits three times during the time Pluto orbits twice ...
Overview Presentation on Pluto and Occultations
... The IAU therefore resolves that "planets" and other bodies in our Solar System, except satellites, be defined into three distinct categories in the following way: (1) A "planet"1 is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid b ...
... The IAU therefore resolves that "planets" and other bodies in our Solar System, except satellites, be defined into three distinct categories in the following way: (1) A "planet"1 is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid b ...
What is the Nice model? - Lunar and Planetary Institute
... What is the Nice model? The Nice model is a set of theories in which the orbits of the giant planets, particularly Uranus and Neptune, changed long after the planets formed. This planetary rearrangement (“instability”) unleashed a flood of comets and asteroids throughout the Solar System. Our goal w ...
... What is the Nice model? The Nice model is a set of theories in which the orbits of the giant planets, particularly Uranus and Neptune, changed long after the planets formed. This planetary rearrangement (“instability”) unleashed a flood of comets and asteroids throughout the Solar System. Our goal w ...
Comets, Asteroids & Meteoroids
... – Plasma tail = solar wind sweeps it outward, so it always points away from sun ...
... – Plasma tail = solar wind sweeps it outward, so it always points away from sun ...
Introduction to Astronomy, Lecture 7
... largest, and only Vesta is naked-eye visible. Many have orbits which cross the Earth’s orbit. ...
... largest, and only Vesta is naked-eye visible. Many have orbits which cross the Earth’s orbit. ...
Planets, Galaxies and Constellations
... substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed mostly of substances with relatively high melting points compared with hy ...
... substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed mostly of substances with relatively high melting points compared with hy ...
Unit 10 Lesson 5 The Gas Giant Planets
... giant planets. • Gas giants have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium. They have no surface to stand on. • The gas giant planets are large and cold. What is known about Jupiter? • Jupiter is the largest planet in the solar system. • Jupiter’s mass is twice t ...
... giant planets. • Gas giants have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium. They have no surface to stand on. • The gas giant planets are large and cold. What is known about Jupiter? • Jupiter is the largest planet in the solar system. • Jupiter’s mass is twice t ...
The Structure of Comets - Oregon State University
... • Two new moons were discovered in 2005, and were named Nix and Hydra in 2006. • Pluto is a mix of water ice, rock, methane and frozen nitrogen. • When Pluto is within Neptune’s orbit, it has an atmosphere. – As the planet moves further out in to the solar system, the atmosphere snows out onto the s ...
... • Two new moons were discovered in 2005, and were named Nix and Hydra in 2006. • Pluto is a mix of water ice, rock, methane and frozen nitrogen. • When Pluto is within Neptune’s orbit, it has an atmosphere. – As the planet moves further out in to the solar system, the atmosphere snows out onto the s ...
Worksheet
... 9. Identify the inner rocky planet. e. All of the above (5 choices) 10. A bucket full of a rocky planet weighs ________________ than a gas planet. a. More (2 choices) 11. Identify the gas giants. e. All of the above (5 choices) 12. Gas giants are made of… a. gas (2 choices) 13. A space probe could l ...
... 9. Identify the inner rocky planet. e. All of the above (5 choices) 10. A bucket full of a rocky planet weighs ________________ than a gas planet. a. More (2 choices) 11. Identify the gas giants. e. All of the above (5 choices) 12. Gas giants are made of… a. gas (2 choices) 13. A space probe could l ...
The Ordered Solar System - Center on Disability Studies
... which currently includes Pluto, Eris*, and Ceres**. *Eris is the largest known dwarf planet in the Solar System and the ninth largest body known to orbit the Sun. Its distance from the Sun is 97 AU. **Ceres is the smallest identified dwarf planet in the Solar System and, ...
... which currently includes Pluto, Eris*, and Ceres**. *Eris is the largest known dwarf planet in the Solar System and the ninth largest body known to orbit the Sun. Its distance from the Sun is 97 AU. **Ceres is the smallest identified dwarf planet in the Solar System and, ...
Chapter One Technology, Science, and Scientific Measurement
... be a type of galaxy that is rapidly moving away from the center of the universe – Some quasars are moving away from the Earth at incredible speeds of almost 90% of the speed of light – these are the fastest objects yet discovered in the universe. ...
... be a type of galaxy that is rapidly moving away from the center of the universe – Some quasars are moving away from the Earth at incredible speeds of almost 90% of the speed of light – these are the fastest objects yet discovered in the universe. ...
Scattered disc
![](https://commons.wikimedia.org/wiki/Special:FilePath/Eris_and_dysnomia2.jpg?width=300)
The scattered disc (or scattered disk) is a distant region of the Solar System that is sparsely populated by icy minor planets, a subset of the broader family of trans-Neptunian objects. The scattered-disc objects (SDOs) have orbital eccentricities ranging as high as 0.8, inclinations as high as 40°, and perihelia greater than 30 astronomical units (4.5×109 km; 2.8×109 mi). These extreme orbits are thought to be the result of gravitational ""scattering"" by the gas giants, and the objects continue to be subject to perturbation by the planet Neptune.Although the closest scattered-disc objects approach the Sun at about 30–35 AU, their orbits can extend well beyond 100 AU. This makes scattered objects among the most distant and coldest objects in the Solar System. The innermost portion of the scattered disc overlaps with a torus-shaped region of orbiting objects traditionally called the Kuiper belt, but its outer limits reach much farther away from the Sun and farther above and below the ecliptic than the Kuiper belt proper.Because of its unstable nature, astronomers now consider the scattered disc to be the place of origin for most periodic comets in the Solar System, with the centaurs, a population of icy bodies between Jupiter and Neptune, being the intermediate stage in an object's migration from the disc to the inner Solar System. Eventually, perturbations from the giant planets send such objects towards the Sun, transforming them into periodic comets. Many Oort cloud objects are also thought to have originated in the scattered disc. Detached objects are not sharply distinct from scattered disc objects, and some such as Sedna have sometimes been considered to be included in this group.