Sun, Stars, HR Diagram
... Base your answers to questions 18through 20 on the diagram below, which shows two possible sequences in the life cycle of stars, beginning with their formation from nebular gas clouds in space. ...
... Base your answers to questions 18through 20 on the diagram below, which shows two possible sequences in the life cycle of stars, beginning with their formation from nebular gas clouds in space. ...
I. What is an Exoplanet?
... has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and ...
... has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and ...
HELIOSTAT II - MEASURING THE SOLAR ROTATION
... the sunspot cycle. (The polarities of the sunspot magnetic fields reverse with each visible cycle, so the true cycle actually takes 22 years to repeat.) At the beginning of a new 11-year cycle, sunspots first appear at high latitudes (approximately 40° north and south of the solar equator). As the c ...
... the sunspot cycle. (The polarities of the sunspot magnetic fields reverse with each visible cycle, so the true cycle actually takes 22 years to repeat.) At the beginning of a new 11-year cycle, sunspots first appear at high latitudes (approximately 40° north and south of the solar equator). As the c ...
Presentation
... • What was the Ptolemaic model? • Ptolemy’s synthesis of earlier Greek ideas about the geocentric universe, which was a sophisticated model that allowed prediction of planetary positions. • What are Kepler’s three laws of planetary motion? • (1) The orbit of each planet is an ellipse with the Sun at ...
... • What was the Ptolemaic model? • Ptolemy’s synthesis of earlier Greek ideas about the geocentric universe, which was a sophisticated model that allowed prediction of planetary positions. • What are Kepler’s three laws of planetary motion? • (1) The orbit of each planet is an ellipse with the Sun at ...
For instance, two hydrogen atoms may fuse together to form one
... For instance, two hydrogen atoms may fuse together to form one helium atom. The process by which light elements fuse into heavier ones is called nuclear fusion. Nuclear fusion releases huge amounts of energy. When the core of a clump becomes a hot, dense ball of hydrogen gas fusing into helium gas, ...
... For instance, two hydrogen atoms may fuse together to form one helium atom. The process by which light elements fuse into heavier ones is called nuclear fusion. Nuclear fusion releases huge amounts of energy. When the core of a clump becomes a hot, dense ball of hydrogen gas fusing into helium gas, ...
Quiz 3
... • If a set of measurements has very high bias, can the set of measurements have a very high accuracy? 1. No. If there is a high bias, then the average of the measurements is far away from the true value. In order to have high accuracy, you need to have all measurements very close to the true value. ...
... • If a set of measurements has very high bias, can the set of measurements have a very high accuracy? 1. No. If there is a high bias, then the average of the measurements is far away from the true value. In order to have high accuracy, you need to have all measurements very close to the true value. ...
Earth, Sun, and Moon - Uplift North Hills Prep
... atmosphere of gases. We know it better as air. Other than Earth, scientists The atmosphere is an important reason why have not found any other places in the universe that life exists on Earth. It holds in much of the have liquid water and life. heat from the Sun so the planet never gets too cold. Th ...
... atmosphere of gases. We know it better as air. Other than Earth, scientists The atmosphere is an important reason why have not found any other places in the universe that life exists on Earth. It holds in much of the have liquid water and life. heat from the Sun so the planet never gets too cold. Th ...
Angular Momentum
... • In principle, they are not necessarily related, that the gravitational mass mg is not the same as mi (but they are, up to the current experimental accuracy) ...
... • In principle, they are not necessarily related, that the gravitational mass mg is not the same as mi (but they are, up to the current experimental accuracy) ...
1 2 3 4 5 6 Orbital Distance (AU) Orbital Period (Years) 1 2 3 4 5 6 7
... This portion of the homework investigates the relationship between how long it takes a planet to orbit a star (orbital period) and how far away that planet is from the star (orbital distance). We will start by investigating an imaginary planetary system that has an average star like the Sun at the c ...
... This portion of the homework investigates the relationship between how long it takes a planet to orbit a star (orbital period) and how far away that planet is from the star (orbital distance). We will start by investigating an imaginary planetary system that has an average star like the Sun at the c ...
Lives of stars
... 3. Do these pair(s) of stars have same stellar classification? explain 4. Which two stars have same luminosity? 5. Do these pair(s) have same stellar classifications? explain 6. Which letter is most similar to the current sun’s location n the diagram? 7. When the sun starts to die, the sun will star ...
... 3. Do these pair(s) of stars have same stellar classification? explain 4. Which two stars have same luminosity? 5. Do these pair(s) have same stellar classifications? explain 6. Which letter is most similar to the current sun’s location n the diagram? 7. When the sun starts to die, the sun will star ...
Classes of the solar wind interactions in the solar system
... undersurface oceans also affects the interaction process but it is too low in comparison with the ionospheric conductivities to support induced strong currents. To simplify this consideration, we organized the classes of the interactions with the solar wind or the magnetospheric plasmas by consideri ...
... undersurface oceans also affects the interaction process but it is too low in comparison with the ionospheric conductivities to support induced strong currents. To simplify this consideration, we organized the classes of the interactions with the solar wind or the magnetospheric plasmas by consideri ...
PSC100 Summary Chapters 10 to Chapter 20
... the stars appear to be quite alike. There are, of course, different patterns to be seen in various areas of the sky, but aside from our Sun and the planet of our solar system, all of the other points of light seem much the same. We have already learned in lesson 3 that the light from these distant p ...
... the stars appear to be quite alike. There are, of course, different patterns to be seen in various areas of the sky, but aside from our Sun and the planet of our solar system, all of the other points of light seem much the same. We have already learned in lesson 3 that the light from these distant p ...
Galaxy Far Far Away ppt
... By looking at the radial velocities of surrounding stars, we can estimate the Sun’s velocity to be about 220 km/s. It takes about 240 million years for the Sun to orbit the center of the galaxy! ...
... By looking at the radial velocities of surrounding stars, we can estimate the Sun’s velocity to be about 220 km/s. It takes about 240 million years for the Sun to orbit the center of the galaxy! ...
Star Formation
... Another application of hydrostatic equilibrium – In this case, with no fusion, the mass needed to collapse a cloud of gas into a star – cs is the speed of sound in the gas – G you’ve seen, r is the density ...
... Another application of hydrostatic equilibrium – In this case, with no fusion, the mass needed to collapse a cloud of gas into a star – cs is the speed of sound in the gas – G you’ve seen, r is the density ...
The Universe - Smithsonian Education
... money to establish an institution of knowledge in Washington, D.C. Smithson, who had never visited the United States, gave no clear indication of what this institution should be. John Quincy Adams, then out of the White House and elected to Congress, urged strongly that it should be an observatory, ...
... money to establish an institution of knowledge in Washington, D.C. Smithson, who had never visited the United States, gave no clear indication of what this institution should be. John Quincy Adams, then out of the White House and elected to Congress, urged strongly that it should be an observatory, ...
The Solar System:
... as the time it takes to spin once on its axis—this results in us only ever seeing the one side of the Moon from Earth. The other side is often called ‘the dark side of the Moon’ since it had never been seen until the ...
... as the time it takes to spin once on its axis—this results in us only ever seeing the one side of the Moon from Earth. The other side is often called ‘the dark side of the Moon’ since it had never been seen until the ...
Section 4 Orbits and Effects
... in a given direction. Airplane pilots must be very aware of the velocity of a plane. Pilots must know both speed and direction of their airplanes to avoid collisions with other aircraft. Because the planets orbit the Sun, their velocities are described as orbital velocities. Finally, motion can be d ...
... in a given direction. Airplane pilots must be very aware of the velocity of a plane. Pilots must know both speed and direction of their airplanes to avoid collisions with other aircraft. Because the planets orbit the Sun, their velocities are described as orbital velocities. Finally, motion can be d ...
PowerPoint
... 2. mean distance between the Sun and the Earth. 3. distance traveled by light in one parsec 4. distance traveled by one astronaut at the speed of light. 5. distance traveled by light in one year. ...
... 2. mean distance between the Sun and the Earth. 3. distance traveled by light in one parsec 4. distance traveled by one astronaut at the speed of light. 5. distance traveled by light in one year. ...
Jupiter - V
... feature is the Great Red Spot. Sky watchers have known about it for more than 300 years. • The Great Red Spot is an oval shaped storm that whirls at a speed of 400km per hour ...
... feature is the Great Red Spot. Sky watchers have known about it for more than 300 years. • The Great Red Spot is an oval shaped storm that whirls at a speed of 400km per hour ...
The Jovian Planets
... He, with most of the composition made of hydrogen compounds such as water, ammonia, methane. ...
... He, with most of the composition made of hydrogen compounds such as water, ammonia, methane. ...
Diameter 49528 km
... Neptune is the eighth and farthest planet from the in our Solar System. A gas giant with the fourth largest diameter in our Solar system, Neptune is the third largest planet. In its southern hemisphere, Neptune has a Great Dark Spot. Neptune was first discovered following careful mathematical calcul ...
... Neptune is the eighth and farthest planet from the in our Solar System. A gas giant with the fourth largest diameter in our Solar system, Neptune is the third largest planet. In its southern hemisphere, Neptune has a Great Dark Spot. Neptune was first discovered following careful mathematical calcul ...
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.