Characteristics of Stars
... long lifespan, about __ 100billion years because it uses its fuel up very slowly. 21. When a red dwarf runs out of fuel it becomes a while dwarf and then a black _dwarf _ 22. An intermediate mass star, like the Sun lives for about_10 billion_ years. 23.When it runs out of the fuel, the core will con ...
... long lifespan, about __ 100billion years because it uses its fuel up very slowly. 21. When a red dwarf runs out of fuel it becomes a while dwarf and then a black _dwarf _ 22. An intermediate mass star, like the Sun lives for about_10 billion_ years. 23.When it runs out of the fuel, the core will con ...
DIFFERENTIATION OF WATER-RICH PLANETARY BODIES
... crust. Step (1) is mostly controlled by the melting curve of ice and is relatively well known. However, almost nothing is known about further differentiation steps, even if we know that some of the differentiated bodies in the outer solar system possess a metallic core (Io, Europa, Ganymede) and thu ...
... crust. Step (1) is mostly controlled by the melting curve of ice and is relatively well known. However, almost nothing is known about further differentiation steps, even if we know that some of the differentiated bodies in the outer solar system possess a metallic core (Io, Europa, Ganymede) and thu ...
Astronomy practice questions for 3-6 test
... 14. Which would be better to use from a land-‐based telescope: the wobble method or the transit method of exoplanet discovery? Why? ...
... 14. Which would be better to use from a land-‐based telescope: the wobble method or the transit method of exoplanet discovery? Why? ...
Star Formation
... Angular momentum • Collapse occurs preferentially along path of least rotation. • The cloud fragment collapses into a central core surrounded by a disk of material. ...
... Angular momentum • Collapse occurs preferentially along path of least rotation. • The cloud fragment collapses into a central core surrounded by a disk of material. ...
Slide 1
... • "I will explain," says Hooke, in a communication to the Royal Society in 1666, "a system of the world very different from any yet received. It is founded on the following positions. 1. That all the heavenly bodies have not only a gravitation of their parts to their own proper centre, but that they ...
... • "I will explain," says Hooke, in a communication to the Royal Society in 1666, "a system of the world very different from any yet received. It is founded on the following positions. 1. That all the heavenly bodies have not only a gravitation of their parts to their own proper centre, but that they ...
Introduction to the HR Diagram
... The Giant Branch: Red giants are luminous, cool giant stars in spectral classes F, G, K, and M located in the upper right-hand corner of the H-R diagram. As the central core of a main sequence star with a mass from ~0.8 to 8 solar masses runs out of hydrogen, radiation pressure no longer balances gr ...
... The Giant Branch: Red giants are luminous, cool giant stars in spectral classes F, G, K, and M located in the upper right-hand corner of the H-R diagram. As the central core of a main sequence star with a mass from ~0.8 to 8 solar masses runs out of hydrogen, radiation pressure no longer balances gr ...
Other Bodies in the Solar System
... History and Theories • Fredrick Leonard: First Astronomer to suggest outer Neptunian bodies • Kenneth Edgeworth: hypothesized that the region beyond Neptune was too widely spaced for Planets • Gerard Kuiper: suggested a “disk” outside Neptune ...
... History and Theories • Fredrick Leonard: First Astronomer to suggest outer Neptunian bodies • Kenneth Edgeworth: hypothesized that the region beyond Neptune was too widely spaced for Planets • Gerard Kuiper: suggested a “disk” outside Neptune ...
SDO | solar dynamics observatory
... Earth revolves around the Sun once per year. The seasons on Earth are caused by the tilt of Earth on its rotation axis, which is approximately 23.5 degrees with respect to it’s plane of orbit. As Earth revolves around the Sun its axis is continually tilted in the same direction. If you extended the ...
... Earth revolves around the Sun once per year. The seasons on Earth are caused by the tilt of Earth on its rotation axis, which is approximately 23.5 degrees with respect to it’s plane of orbit. As Earth revolves around the Sun its axis is continually tilted in the same direction. If you extended the ...
Chapter 2 - Colorado Mesa University
... • How can we tell time by the phase and position of the moon The moon is thought to have been formed by a huge impact with the Earth early in our planets history The moon is ~ 1.25-1.5 light seconds away, how far is that? The moon is slowly moving away from us but right now is the same angular size ...
... • How can we tell time by the phase and position of the moon The moon is thought to have been formed by a huge impact with the Earth early in our planets history The moon is ~ 1.25-1.5 light seconds away, how far is that? The moon is slowly moving away from us but right now is the same angular size ...
Star project
... have their own gravity and have a fixed position in space. • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
... have their own gravity and have a fixed position in space. • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
The Comet`s Tale Assessment
... a) the time it takes for the comet to travel once around the Sun b) the shortest distance from the Sun to the comet along the comet’s path c) the number of times the comet orbits the Sun in a millennium d) the amount of time between sightings of the comet from Earth 4. What is a short-period comet? ...
... a) the time it takes for the comet to travel once around the Sun b) the shortest distance from the Sun to the comet along the comet’s path c) the number of times the comet orbits the Sun in a millennium d) the amount of time between sightings of the comet from Earth 4. What is a short-period comet? ...
starevolution - Global Change Program
... core. When the hydrogen is used up, the star will move away from the main sequence. A moderately sized star like the sun will become a red giant, growing in size to engulf the Earth and burning helium to make carbon. Following this stage, the outer layers will be thrown off, and the Sun will end up ...
... core. When the hydrogen is used up, the star will move away from the main sequence. A moderately sized star like the sun will become a red giant, growing in size to engulf the Earth and burning helium to make carbon. Following this stage, the outer layers will be thrown off, and the Sun will end up ...
Outer Solar System Exploration: Outer Planets Assessment Group
... Named for the Lakota spider-god “Inktomi,” this long-legged crater stretches across most of the leading face of Saturn’s icy moon Rhea. Infrared measurements from Cassini show that Inktomi’s icy splatter cools down more slowly at night than its surroundings. This means the Inktomi debris is either d ...
... Named for the Lakota spider-god “Inktomi,” this long-legged crater stretches across most of the leading face of Saturn’s icy moon Rhea. Infrared measurements from Cassini show that Inktomi’s icy splatter cools down more slowly at night than its surroundings. This means the Inktomi debris is either d ...
Version A - Otterbein University
... d. None of the above 26. To see the greatest number of stars possible throughout the period of one year, a person should be located at latitude a. 23.5 degrees b. 0 degrees. c. anywhere, since latitude makes no difference. d. 66.5 degrees e. 90 degrees. 27. Two objects appear to be the same size in ...
... d. None of the above 26. To see the greatest number of stars possible throughout the period of one year, a person should be located at latitude a. 23.5 degrees b. 0 degrees. c. anywhere, since latitude makes no difference. d. 66.5 degrees e. 90 degrees. 27. Two objects appear to be the same size in ...
Version B - Otterbein University
... 8) Use the backside of the computer form to record the answers to the last three questions, which are not multiple-choice but short answer questions. 9) You should be able to answer all questions without using a calculator, but if you wish, you can use a scientific calculator. ...
... 8) Use the backside of the computer form to record the answers to the last three questions, which are not multiple-choice but short answer questions. 9) You should be able to answer all questions without using a calculator, but if you wish, you can use a scientific calculator. ...
Goal: To understand how the sun works
... • In the core, the force of gravity is pretty intense. • Temperature: up to 15 million degrees Kelvin! • Density: up to 150 times the density of water! ...
... • In the core, the force of gravity is pretty intense. • Temperature: up to 15 million degrees Kelvin! • Density: up to 150 times the density of water! ...
Orbit of Mercury
... - Semi-major axis (a) is half of the long axis - Period (p) is the time it takes to go around the Sun one time - Eccentricity (e) is how squished the orbit is e = 0 is a circle e = 0.5 looks like an oval e = 1 is a very squished oval ...
... - Semi-major axis (a) is half of the long axis - Period (p) is the time it takes to go around the Sun one time - Eccentricity (e) is how squished the orbit is e = 0 is a circle e = 0.5 looks like an oval e = 1 is a very squished oval ...
January 2007 - Western Nevada Astronomical Society
... Q: What is a sunspot? Sunspots are temporary, dark, relatively cool blotches on the Sun’s bright photosphere. They usually appear in groups of two or more. Individual sunspots last anywhere from a few hours to a few months. Sunspots were first observed and recorded by the Chinese about 800 B.C. Suns ...
... Q: What is a sunspot? Sunspots are temporary, dark, relatively cool blotches on the Sun’s bright photosphere. They usually appear in groups of two or more. Individual sunspots last anywhere from a few hours to a few months. Sunspots were first observed and recorded by the Chinese about 800 B.C. Suns ...
Physics@Brock - Brock University
... (a) About 50% hydrogen, about 50% helium, and less than 2% heavier elements. (b) About 60% hydrogen, about 40% helium, and less than 2% heavier elements. (c) About 75% hydrogen, about 25% helium, and less than 2% heavier elements. (d) About 90% hydrogen, about 10% helium, and less than 2% heavier el ...
... (a) About 50% hydrogen, about 50% helium, and less than 2% heavier elements. (b) About 60% hydrogen, about 40% helium, and less than 2% heavier elements. (c) About 75% hydrogen, about 25% helium, and less than 2% heavier elements. (d) About 90% hydrogen, about 10% helium, and less than 2% heavier el ...
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.