Class 1 and 2 lecture slides (Solar System Formation)
... the centre; this central hot portion forms a star • The outer, cooler particles suffer repeated collisions, building planet-sized bodies from dust grains (accretion) • Young stellar activity (T-Tauri phase) blows off any remaining gas and leaves an embryonic solar system • These argument suggest tha ...
... the centre; this central hot portion forms a star • The outer, cooler particles suffer repeated collisions, building planet-sized bodies from dust grains (accretion) • Young stellar activity (T-Tauri phase) blows off any remaining gas and leaves an embryonic solar system • These argument suggest tha ...
1 The Solar System - e
... sky? There is evidence that man had shown an interest in knowing about them since ancient times. At present man can explore more than what is visible to the naked eye, as scientists have invented modern equipment to observe the sky. It has been discovered that there are eight planets, shapeless piec ...
... sky? There is evidence that man had shown an interest in knowing about them since ancient times. At present man can explore more than what is visible to the naked eye, as scientists have invented modern equipment to observe the sky. It has been discovered that there are eight planets, shapeless piec ...
Hubble`s Law is the relation between the recession velocity of a
... (A white dwarf may be hot, but the high temperature just makes them cool more quickly.) Note: A white dwarf is still in hydrostatic equilibrium. In a white dwarf, the gravity is supported not by energy flowing outward but by the pressure from the dense degenerate matter. On this problem, many people ...
... (A white dwarf may be hot, but the high temperature just makes them cool more quickly.) Note: A white dwarf is still in hydrostatic equilibrium. In a white dwarf, the gravity is supported not by energy flowing outward but by the pressure from the dense degenerate matter. On this problem, many people ...
Lab 5: Searching for Extra-Solar Planets
... finding planets of smaller sizes. With the launch of Kepler in 2009, astronomers hope to begin finding Earth-like planets, a quest that will continue with several more satellite telescopes within the next ten years. ...
... finding planets of smaller sizes. With the launch of Kepler in 2009, astronomers hope to begin finding Earth-like planets, a quest that will continue with several more satellite telescopes within the next ten years. ...
FantasticTrip - Cooper Church of Christ
... This is a trip at high speed, jumping distances by a factor of 10. We’ll start with 100 (equivalent to 1 meter), and will increase the size by a factor of 10, or 101 (10 meters), 102 (10x10 = 100 ...
... This is a trip at high speed, jumping distances by a factor of 10. We’ll start with 100 (equivalent to 1 meter), and will increase the size by a factor of 10, or 101 (10 meters), 102 (10x10 = 100 ...
ph507lecnote06
... • Substantial gaseous envelopes • Masses of the order of Jupiter mass • In the Solar System, NOT same composition as Sun • Presence of gas implies formation while gas was still prevelant ...
... • Substantial gaseous envelopes • Masses of the order of Jupiter mass • In the Solar System, NOT same composition as Sun • Presence of gas implies formation while gas was still prevelant ...
Earth at Aphelion - Stargazers Lounge
... orbit around the Moon, and so on. You’ll hear the words apijove and perijove bandied about this week a bit, as NASA’s Juno spacecraft enters orbit around Jupiter tonight. And there are crazier and even more obscure counterparts out there, such as peribothron and apobothron (orbiting a black hole) an ...
... orbit around the Moon, and so on. You’ll hear the words apijove and perijove bandied about this week a bit, as NASA’s Juno spacecraft enters orbit around Jupiter tonight. And there are crazier and even more obscure counterparts out there, such as peribothron and apobothron (orbiting a black hole) an ...
Learning Objectives Weeks 9-11 . 1. Know that star birth can begin
... 9. Know that stars of moderately low mass die by gently ejecting their outer layers, creating planetary nebulae. 10. The burned-out core of a moderately low-mass star cools and contracts until it becomes a white dwarf. A white dwarf is kept from collapsing by the pressure of its degenerate electrons ...
... 9. Know that stars of moderately low mass die by gently ejecting their outer layers, creating planetary nebulae. 10. The burned-out core of a moderately low-mass star cools and contracts until it becomes a white dwarf. A white dwarf is kept from collapsing by the pressure of its degenerate electrons ...
Handout
... different reference frames. This suggests that the two clocks should agree when the travelling twin returns to Earth, but as you calculated above, the proper times are different, so the clocks will not agree. This appears to be a violation of the principle of relativity! Before you worry about this ...
... different reference frames. This suggests that the two clocks should agree when the travelling twin returns to Earth, but as you calculated above, the proper times are different, so the clocks will not agree. This appears to be a violation of the principle of relativity! Before you worry about this ...
Doppler Effect - SAVE MY EXAMS!
... The Andromeda galaxy is believed to be approaching the Milky Way at a speed of 105 km s–1. Calculate the wavelength of the radio waves produced by atomic hydrogen which would be detected from a source approaching the observer at a speed of 105 km s–1. wavelength of atomic hydrogen measured in a labo ...
... The Andromeda galaxy is believed to be approaching the Milky Way at a speed of 105 km s–1. Calculate the wavelength of the radio waves produced by atomic hydrogen which would be detected from a source approaching the observer at a speed of 105 km s–1. wavelength of atomic hydrogen measured in a labo ...
Gravity: Motivation • An initial theory describing the nature of the
... 1) The composition of Earth and the Moon is similar enough to eliminate the Capture Model. 2) On the other hand differences between the composition of the Earth and Moon are significant enough (notably lack of iron on the moon and difference in densities) to rule out Binary Accretion. 3) Fission can ...
... 1) The composition of Earth and the Moon is similar enough to eliminate the Capture Model. 2) On the other hand differences between the composition of the Earth and Moon are significant enough (notably lack of iron on the moon and difference in densities) to rule out Binary Accretion. 3) Fission can ...
Stellar Remnants
... •Formed in supernova explosions •from 1.4 to about 3 solar masses •Made of pure neutrons – a giant atomic nucleus •About 20 km in diameter •One cc would weigh about a million tons Black Holes •Formed in Supernova explosions •Usually a few times the mass of the Sun •A solar mass black hole is about 3 ...
... •Formed in supernova explosions •from 1.4 to about 3 solar masses •Made of pure neutrons – a giant atomic nucleus •About 20 km in diameter •One cc would weigh about a million tons Black Holes •Formed in Supernova explosions •Usually a few times the mass of the Sun •A solar mass black hole is about 3 ...
Lecture #4 - History of Astronomy - Ptolemy to Kepler
... Kepler noted that Mars slowed down when it approached the sun He found that a line drawn between the sun and a planet sweeps out an equal area in an equal period of time anytime during its orbit – Planetary motions are non-uniform but vary in a regular way – Planets move more slowly when they are fa ...
... Kepler noted that Mars slowed down when it approached the sun He found that a line drawn between the sun and a planet sweeps out an equal area in an equal period of time anytime during its orbit – Planetary motions are non-uniform but vary in a regular way – Planets move more slowly when they are fa ...
7.4 – Universal Gravitation
... The moon’s orbit around the Earth is slightly tilted (about 5º) with respect to Earth’s orbit around the sun. Therefore, most months neither the Earth’s shadow nor the moon’s shadow affects one another. However, an ellipse occurs when the moon’s shadow is cast onto the Earth or the Earth’s shadow is ...
... The moon’s orbit around the Earth is slightly tilted (about 5º) with respect to Earth’s orbit around the sun. Therefore, most months neither the Earth’s shadow nor the moon’s shadow affects one another. However, an ellipse occurs when the moon’s shadow is cast onto the Earth or the Earth’s shadow is ...
Gravitation
... Although it contributes only 0.02 percent to Earth’s total mass, the water in Earth’s oceans is still quite massive. Suppose the water of the oceans could somehow be drained, kept in liquid form, and moved as far from Earth as the moon is. How large would the gravitational force between the water an ...
... Although it contributes only 0.02 percent to Earth’s total mass, the water in Earth’s oceans is still quite massive. Suppose the water of the oceans could somehow be drained, kept in liquid form, and moved as far from Earth as the moon is. How large would the gravitational force between the water an ...
You in Outer Space Curriculum Map
... Content Statements 1. The Sun is one of many stars in the Milky Way galaxy. 2. The Sun star is very different from the planet Earth or any of the other planets. 3. Stars reside at different distances from Earth, which determines how they are viewed. 4. Stars burn a fuel known as hydrogen, but they d ...
... Content Statements 1. The Sun is one of many stars in the Milky Way galaxy. 2. The Sun star is very different from the planet Earth or any of the other planets. 3. Stars reside at different distances from Earth, which determines how they are viewed. 4. Stars burn a fuel known as hydrogen, but they d ...
Rare Earth hypothesis
In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.