Week 5 Lecture
... S. indicate that they have 2.6% and 10% of their mass locked in a small rocky core. For Jupiter this is 11,000 km in diameter, 8 times Earth’s mass with pressures of 70 million bars. • Saturn’s larger core can be inferred from its higher degree of oblateness (due to lesser gravity). However it would ...
... S. indicate that they have 2.6% and 10% of their mass locked in a small rocky core. For Jupiter this is 11,000 km in diameter, 8 times Earth’s mass with pressures of 70 million bars. • Saturn’s larger core can be inferred from its higher degree of oblateness (due to lesser gravity). However it would ...
North Celestial Pole
... The equinox where the Sun ascends from the southern to the northern hemisphere is called the spring or vernal equinox because the Sun is there on March 21. The vernal equinox is chosen to be 0 h R.A. ...
... The equinox where the Sun ascends from the southern to the northern hemisphere is called the spring or vernal equinox because the Sun is there on March 21. The vernal equinox is chosen to be 0 h R.A. ...
Lesson #4: The Moon and its Phases
... After the new moon, the sunlit portion is increasing, but less than half, so it is waxing crescent. After the first quarter, the sunlit portion is still increasing, but now it is more than half, so it is waxing gibbous. After the full moon (maximum illumination), the light continually decreases. So ...
... After the new moon, the sunlit portion is increasing, but less than half, so it is waxing crescent. After the first quarter, the sunlit portion is still increasing, but now it is more than half, so it is waxing gibbous. After the full moon (maximum illumination), the light continually decreases. So ...
Chapter 13
... – A consequence of these laws is that no two electrons of the same energy can occupy the same volume – The degenerate gas behaves more like a solid – it does not expand as its temperature rises ...
... – A consequence of these laws is that no two electrons of the same energy can occupy the same volume – The degenerate gas behaves more like a solid – it does not expand as its temperature rises ...
Chapter 13 The Life of a Star The Life of a Star Mass Is the Key The
... passage through the heavens, but never considered that they evolved • In the 18th century, Immanuel Kant described the Sun as a fiery sphere, formed from the gases gravitated to the center of a solar nebula • In the 1850s and 1860s, Lord Kelvin and Hermann von Helmholtz used the physics of gases and ...
... passage through the heavens, but never considered that they evolved • In the 18th century, Immanuel Kant described the Sun as a fiery sphere, formed from the gases gravitated to the center of a solar nebula • In the 1850s and 1860s, Lord Kelvin and Hermann von Helmholtz used the physics of gases and ...
More on Cluster HR diagrams - University of Texas Astronomy
... most stars more massive than 8-10 Mo cannot be “saved” as white dwarfs, and instead find themselves with a very different fate… (supernovae, neutron stars, black holes). This is covered in detail in subsequent chapters. Observing Stellar Evolution in Star Clusters (sec. 20.5) An intro. to this is se ...
... most stars more massive than 8-10 Mo cannot be “saved” as white dwarfs, and instead find themselves with a very different fate… (supernovae, neutron stars, black holes). This is covered in detail in subsequent chapters. Observing Stellar Evolution in Star Clusters (sec. 20.5) An intro. to this is se ...
class 4, F10 (ch. 2c and 3)
... “lap” another planet (or when Mercury or Venus lap us) • But very difficult to explain if you think that Earth is the center of the universe! • In fact, ancients considered but rejected the correct explanation… ...
... “lap” another planet (or when Mercury or Venus lap us) • But very difficult to explain if you think that Earth is the center of the universe! • In fact, ancients considered but rejected the correct explanation… ...
Planet formation
... Planetesimals continue to grow via inelastic collisions to km-size bodies. This phase sets the stage to allow for collisions between more massive particles. The low relative velocities of massive planetesimals also facilitate accretion of lower-mass planetesimals (low relative velocity = high intera ...
... Planetesimals continue to grow via inelastic collisions to km-size bodies. This phase sets the stage to allow for collisions between more massive particles. The low relative velocities of massive planetesimals also facilitate accretion of lower-mass planetesimals (low relative velocity = high intera ...
Relative positions of the earth, moon, and sun
... rhythm that has guided humans for thousands of years. The moon was likely formed after a Mars-sized body collided with Earth and the debris formed into the most prominent feature in our night sky. The gravity of the Moon, the pull which it exerts on the Earth, causes two high tides on the Earth ever ...
... rhythm that has guided humans for thousands of years. The moon was likely formed after a Mars-sized body collided with Earth and the debris formed into the most prominent feature in our night sky. The gravity of the Moon, the pull which it exerts on the Earth, causes two high tides on the Earth ever ...
starway of heaven - Conscious Evolution
... star-groups would have, to them, looked like a Bull's head or a Hunter's dog (much like the shapes we imagine we see in the fluffy clouds today). ...
... star-groups would have, to them, looked like a Bull's head or a Hunter's dog (much like the shapes we imagine we see in the fluffy clouds today). ...
Preview Sample 2
... Copyright © 2009 Pearson Education, Inc., publishing as Pearson Addison-Wesley ...
... Copyright © 2009 Pearson Education, Inc., publishing as Pearson Addison-Wesley ...
Asteroids The Asteroid Belt Composition and Classification
... that develops an atmosphere as it approaches the Sun • Comets can develop tails • Comets move with respect to the background stars but are much more unpredictable than planets • Comets are the best preserved, most primitive material available in the solar system Q ...
... that develops an atmosphere as it approaches the Sun • Comets can develop tails • Comets move with respect to the background stars but are much more unpredictable than planets • Comets are the best preserved, most primitive material available in the solar system Q ...
Jupiter – King of the Gods (and planets)
... a dark, barely-visible ring. Its most prominent features are bands across its latitudes and a great red spot (which is a storm). Jupiter is composed mostly of gas. This enormous planet radiates twice as much heat as it absorbs from the Sun. It also has an extremely strong magnetic field. It is sligh ...
... a dark, barely-visible ring. Its most prominent features are bands across its latitudes and a great red spot (which is a storm). Jupiter is composed mostly of gas. This enormous planet radiates twice as much heat as it absorbs from the Sun. It also has an extremely strong magnetic field. It is sligh ...
CURRICULUM COMMITTEE COURSE PROPOSAL FORM
... COURSE DESCRIPTION FOR CATALOG: The discovery of exoplanets is one of the greatest revolutions in modern astronomy. Over eighteen hundred exoplanets have been discovered to date. The universe is teeming with planets - hot Jupiter-like planets skimming the surfaces of their stars, free-floating plane ...
... COURSE DESCRIPTION FOR CATALOG: The discovery of exoplanets is one of the greatest revolutions in modern astronomy. Over eighteen hundred exoplanets have been discovered to date. The universe is teeming with planets - hot Jupiter-like planets skimming the surfaces of their stars, free-floating plane ...
The Universe - Beck-Shop
... Sun may have still closer neighbors – very small, dimly luminous stars – too faint to have been detected thus far. There may also be burned-out stars that have exhausted their fuel in the space between the Sun and Alpha Centauri. Finally, there may be many bodies the size of planets, too small to gl ...
... Sun may have still closer neighbors – very small, dimly luminous stars – too faint to have been detected thus far. There may also be burned-out stars that have exhausted their fuel in the space between the Sun and Alpha Centauri. Finally, there may be many bodies the size of planets, too small to gl ...
doc
... nearly all of them are younger than about 100 million years? Does this suggest that there were few open clusters forming until recently, with our ...
... nearly all of them are younger than about 100 million years? Does this suggest that there were few open clusters forming until recently, with our ...
The Sun - TeacherWeb
... that produces the Sun’s energy. In a thermonuclear reaction, tiny hydrogen atoms combine to form larger helium atoms. This process is called fusion. When the hydrogen atoms fuse, they release bits of energy. As trillions upon trillions of hydrogen atoms fuse and release energy, the overall effect is ...
... that produces the Sun’s energy. In a thermonuclear reaction, tiny hydrogen atoms combine to form larger helium atoms. This process is called fusion. When the hydrogen atoms fuse, they release bits of energy. As trillions upon trillions of hydrogen atoms fuse and release energy, the overall effect is ...
Homework #2, AST 203, Spring 2012
... c. Take the ratio of the two orbital periods you calculated in parts (a) and (b). You’ll see that it is very close to the ratio of two small integers; which integers are these? Thus the two planets regularly come close to one another, in the same part of their orbits, which allows them to have a max ...
... c. Take the ratio of the two orbital periods you calculated in parts (a) and (b). You’ll see that it is very close to the ratio of two small integers; which integers are these? Thus the two planets regularly come close to one another, in the same part of their orbits, which allows them to have a max ...
uniview glossary - DMNS Galaxy Guide Portal
... Saturn was named for the Roman god of agriculture and lies 885 million miles from the Sun, (9.6 AU). Saturn takes 29.5 years to orbit, but only 10.7 hours to rotate (day). Its diameter is 75,000 miles, making it the second largest planet. Its mass is 95 times that of Earth. It is the second of the f ...
... Saturn was named for the Roman god of agriculture and lies 885 million miles from the Sun, (9.6 AU). Saturn takes 29.5 years to orbit, but only 10.7 hours to rotate (day). Its diameter is 75,000 miles, making it the second largest planet. Its mass is 95 times that of Earth. It is the second of the f ...
Project Medley Topics
... Compare two space missions (that have not launched yet) as if you are a legislative assistant. Then, write a detailed brief explaining to your congressman/woman who he/she should fund and who not. Assignment 13 A Closer Look at the Planets Choose 1 or 2 of the planets within our Solar System and dis ...
... Compare two space missions (that have not launched yet) as if you are a legislative assistant. Then, write a detailed brief explaining to your congressman/woman who he/she should fund and who not. Assignment 13 A Closer Look at the Planets Choose 1 or 2 of the planets within our Solar System and dis ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.