Formation of planets and debris disks in the terrestrial zone
... Planet Formation • Coagulation * dust Î planetesimals Î planets * make Earths * Earths accrete gas * Earths stir up debris * Debris scatters radiation from star * Scattered radiation is visible ...
... Planet Formation • Coagulation * dust Î planetesimals Î planets * make Earths * Earths accrete gas * Earths stir up debris * Debris scatters radiation from star * Scattered radiation is visible ...
MID-TERM REVIEW 2013-2014
... 36. WHAT ARE METEOROIDS AND HOW DO THEY FORM? • Chunks of rock or dust in space • They typically come from asteroids or comets • They do not have a set orbit ...
... 36. WHAT ARE METEOROIDS AND HOW DO THEY FORM? • Chunks of rock or dust in space • They typically come from asteroids or comets • They do not have a set orbit ...
As a nebula
... • Geocentric model • It described the Earth being at the center of the solar system and the sun and the rest of the plants revolving around it. ...
... • Geocentric model • It described the Earth being at the center of the solar system and the sun and the rest of the plants revolving around it. ...
PowerPoint - Chandra X
... The young Sun-like stars in Orion produce violent X-ray outbursts, or flares, that are much more frequent and energetic than anything seen today from our Sun. The range of flare energies is large, with some of the stars producing flares that are a hundred times larger than others. The different flar ...
... The young Sun-like stars in Orion produce violent X-ray outbursts, or flares, that are much more frequent and energetic than anything seen today from our Sun. The range of flare energies is large, with some of the stars producing flares that are a hundred times larger than others. The different flar ...
The Formation of the Solar System Name
... and sometimes stick together, forming larger particles. This is called condensation. These larger particles are orbiting the center of the cloud counterclockwise, because the smaller particles were traveling in that direction. As these larger particles begin to collide with other particles of the sa ...
... and sometimes stick together, forming larger particles. This is called condensation. These larger particles are orbiting the center of the cloud counterclockwise, because the smaller particles were traveling in that direction. As these larger particles begin to collide with other particles of the sa ...
Prelab 2: The “Planet Walk” Lab
... 1. (4 points) Determine the scale factor of the model: The easiest way to do this is to determine the diameter of the model sun or a model planet, and then compare this to the actual diameter listed in your textbook (or other resource). The ratio of the actual size to this measured scale-model size ...
... 1. (4 points) Determine the scale factor of the model: The easiest way to do this is to determine the diameter of the model sun or a model planet, and then compare this to the actual diameter listed in your textbook (or other resource). The ratio of the actual size to this measured scale-model size ...
Earth Is Not the Center of the Universe
... sunʼs light to be visible without a telescope. The tails always stretch away from the sun hundreds of millions of kilometers. Each time they orbit the sun, comets get smaller and smaller. After orbiting the sun many times, the comets will eventually disappear. ...
... sunʼs light to be visible without a telescope. The tails always stretch away from the sun hundreds of millions of kilometers. Each time they orbit the sun, comets get smaller and smaller. After orbiting the sun many times, the comets will eventually disappear. ...
Earth and the Universe Name
... 6. What is the difference between blue and red star? ____________________________________________________. 7. How does our star compare to the blue and red stars based on age?______________________________________. 8. The shape of Earth is _______________________________________________________. 9. ...
... 6. What is the difference between blue and red star? ____________________________________________________. 7. How does our star compare to the blue and red stars based on age?______________________________________. 8. The shape of Earth is _______________________________________________________. 9. ...
PLEIADES - ISILIMELA - Communicating Astronomy With The Public
... • THE MONTH OF MAY IS NAMED AFTER THIS STAR ...
... • THE MONTH OF MAY IS NAMED AFTER THIS STAR ...
The Outer Planets - Duplin County Schools
... into space by the Cassini orbiter, will descend to Titan’s surface for further studies In this section, we’ll take a clue from Cassini and explore the outer planets—Jupiter, Saturn, Neptune, Uranus, and Pluto ...
... into space by the Cassini orbiter, will descend to Titan’s surface for further studies In this section, we’ll take a clue from Cassini and explore the outer planets—Jupiter, Saturn, Neptune, Uranus, and Pluto ...
ISP205L Visions of the Universe Laboratory
... Moon phases. Predicting them. Why we always see one side. Eclipses. ...
... Moon phases. Predicting them. Why we always see one side. Eclipses. ...
Lecture 24: The Jovian Planets
... Sizes: 1 – 1500 km >300 km are spherical <300 km are irregular Density: 0.3 – 1.5 g/cc Rock+Ice or mostly Ice Ancient, heavily cratered surfaces. ...
... Sizes: 1 – 1500 km >300 km are spherical <300 km are irregular Density: 0.3 – 1.5 g/cc Rock+Ice or mostly Ice Ancient, heavily cratered surfaces. ...
Astro 1010 Planetary Astronomy Sample Questions for Exam 3
... b) there were as many as 100 moon to Mars sized protoplanets in the inner part of the solar system. c) there were as many as 100 Uranus to Saturn sized protoplanets in the outer solar system. d) the solar system was dominated by two objects much larger in size than Jupiter which collided, shattered ...
... b) there were as many as 100 moon to Mars sized protoplanets in the inner part of the solar system. c) there were as many as 100 Uranus to Saturn sized protoplanets in the outer solar system. d) the solar system was dominated by two objects much larger in size than Jupiter which collided, shattered ...
15_LectureOutline
... Planets orbiting within 0.1 AU of their stars are called “hot Jupiters”; they are not included in the previous figure but are numerous. Stars with composition like our Sun are much more likely to have planets, showing that the “dusty disk” theory is plausible. Some of these “planets” may actually be ...
... Planets orbiting within 0.1 AU of their stars are called “hot Jupiters”; they are not included in the previous figure but are numerous. Stars with composition like our Sun are much more likely to have planets, showing that the “dusty disk” theory is plausible. Some of these “planets” may actually be ...
The Doppler effect
... To track the actual motion of each celestial body we use the stars as the frame of reference instead of Earth. This is because we are looking for motions in the sky that are different from the big motion caused by Earth’s rotation. ...
... To track the actual motion of each celestial body we use the stars as the frame of reference instead of Earth. This is because we are looking for motions in the sky that are different from the big motion caused by Earth’s rotation. ...
ph709-15-testrevision
... planetary system. The disk does not start at the star. Rather, its inner edge begins around 25 AU away, farther than the average orbital distance of Uranus in the Solar System. Theoretically, this disk should have lasted for only around 10 million years. That it has persisted for the 20 to 200 milli ...
... planetary system. The disk does not start at the star. Rather, its inner edge begins around 25 AU away, farther than the average orbital distance of Uranus in the Solar System. Theoretically, this disk should have lasted for only around 10 million years. That it has persisted for the 20 to 200 milli ...
PHYSICS 015
... within the core! It is almost pure H + He. The escaping material eventually merges into the interstellar medium, and is available to be used in other stars that may form later. ...
... within the core! It is almost pure H + He. The escaping material eventually merges into the interstellar medium, and is available to be used in other stars that may form later. ...
Testing
... • Smaller than Jupiter/Saturn; much larger than Earth • Made of H/He gas and hydrogen compounds (H2O, NH3, CH4) • Extreme axis tilt • Moons and rings ...
... • Smaller than Jupiter/Saturn; much larger than Earth • Made of H/He gas and hydrogen compounds (H2O, NH3, CH4) • Extreme axis tilt • Moons and rings ...
Inner Outer Planets Quiz
... and an incoming piece of solar system debris. The incoming debris could be an asteroid, a comet, or a meteoroid. Most meteors are caused by very small meteoroids entering the atmosphere. 4. The inner planets are also known as the terrestrial planets because they are solid, rocky planets. The gas gia ...
... and an incoming piece of solar system debris. The incoming debris could be an asteroid, a comet, or a meteoroid. Most meteors are caused by very small meteoroids entering the atmosphere. 4. The inner planets are also known as the terrestrial planets because they are solid, rocky planets. The gas gia ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.