ch 12 - Gravitation
... The planet Saturn has about 100 times the mass of the earth and is about 10 times farther from the sun than the earth is. Compared to the acceleration of the earth caused by the sun’s gravitational pull, how great is the acceleration of Saturn due to the sun’s gravitation? [show work] 100 times grea ...
... The planet Saturn has about 100 times the mass of the earth and is about 10 times farther from the sun than the earth is. Compared to the acceleration of the earth caused by the sun’s gravitational pull, how great is the acceleration of Saturn due to the sun’s gravitation? [show work] 100 times grea ...
Sirius Astronomer - Orange County Astronomers
... galaxy merger ever seen in submillimeter radio light. The galaxies are in a feeding frenzy that will quickly exhaust the supply of material to form stars, and in hundreds of millions of years should result in a galaxy that slowly starves for material to form stars for the rest of its life. The colli ...
... galaxy merger ever seen in submillimeter radio light. The galaxies are in a feeding frenzy that will quickly exhaust the supply of material to form stars, and in hundreds of millions of years should result in a galaxy that slowly starves for material to form stars for the rest of its life. The colli ...
Pre-Final Quiz Answers
... Our current best estimate for the time of the "Big Bang" moment is (Recall 1 billion years = 109 years in scientific numerical measure.): 13.73 ± 0.12 billion years ago. ...
... Our current best estimate for the time of the "Big Bang" moment is (Recall 1 billion years = 109 years in scientific numerical measure.): 13.73 ± 0.12 billion years ago. ...
The Celestial E-Sphere
... asked about the program making very admiring comments. Several of followed up since and asked for copies. In all cases where there has been feedback it has been very positive. Some of the lecturers and tutors at the OU expressed interest in using it for teaching on some of the Astronomy courses incl ...
... asked about the program making very admiring comments. Several of followed up since and asked for copies. In all cases where there has been feedback it has been very positive. Some of the lecturers and tutors at the OU expressed interest in using it for teaching on some of the Astronomy courses incl ...
Introduction To Astronomy
... changing • Two people at different spots on earth will disagree about Alt., Az. coordinates even if they are looking at the same object at the same time ...
... changing • Two people at different spots on earth will disagree about Alt., Az. coordinates even if they are looking at the same object at the same time ...
1 HABITABLE ZONES IN THE UNIVERSE GUILLERMO GONZALEZ
... Hart (1978, 1979) presented a detailed and mathematical study of the CHZ. He modeled the evolution of the Earth’s climate since its formation, including volcanic outgassing, atmospheric loss, the greenhouse effect, albedo variations, biomass variation, various geophysical processes, and the gradual ...
... Hart (1978, 1979) presented a detailed and mathematical study of the CHZ. He modeled the evolution of the Earth’s climate since its formation, including volcanic outgassing, atmospheric loss, the greenhouse effect, albedo variations, biomass variation, various geophysical processes, and the gradual ...
Astronomy Rough Notes
... Question: It is about 1 mi to the downtown library from here. If you wanted to represent that distance on your scaled map, would you use a pencil point dot or the diameter of a dime to represent that distance? Explain. Answer: 1 mm = 10 mi so 1/10 mm = 10/10 mi or 0.1 mm = 1 mi So 1 mi on the scale ...
... Question: It is about 1 mi to the downtown library from here. If you wanted to represent that distance on your scaled map, would you use a pencil point dot or the diameter of a dime to represent that distance? Explain. Answer: 1 mm = 10 mi so 1/10 mm = 10/10 mi or 0.1 mm = 1 mi So 1 mi on the scale ...
Extra-solar planets
... Here is the spectrum of a nearby F dwarf, by itself, and with the light sent through an iodine cell. Each of the wiggles is a sodium line, which allows very precise wavelengths to be measured. ...
... Here is the spectrum of a nearby F dwarf, by itself, and with the light sent through an iodine cell. Each of the wiggles is a sodium line, which allows very precise wavelengths to be measured. ...
Astro 101 Final F15 - Nicholls State University
... b. Planetesimals only d. The protostar and planetestimals ____ 18. Why are most of the planets composed of refractory materials found in the inner solar system? a. Planetary bodies can only be formed from refractory materials. b. Refractory material existed only in the inner protoplanetary disk. c. ...
... b. Planetesimals only d. The protostar and planetestimals ____ 18. Why are most of the planets composed of refractory materials found in the inner solar system? a. Planetary bodies can only be formed from refractory materials. b. Refractory material existed only in the inner protoplanetary disk. c. ...
TLW design a model that describes the position and relationship of
... Our solar system is made up of planets, dwarf planets, moons, asteroids and comets. Planets, dwarf planets, plutoids, comets and asteroids orbit the Sun. Moons orbit the planets. There are currently eight planets and three or four (depending on the source) identified plutoids and dwarf planets in o ...
... Our solar system is made up of planets, dwarf planets, moons, asteroids and comets. Planets, dwarf planets, plutoids, comets and asteroids orbit the Sun. Moons orbit the planets. There are currently eight planets and three or four (depending on the source) identified plutoids and dwarf planets in o ...
Hands-On Tracking Sunspots!
... you may feel the warm sun on your face. The Sun’s light and heat allow life to exist and flourish on Earth. Compared to Earth, the Sun is huge. One million Earths could fit inside it. The Sun is composed mostly of hydrogen and helium gases. It has a central core that cannot be seen directly but oute ...
... you may feel the warm sun on your face. The Sun’s light and heat allow life to exist and flourish on Earth. Compared to Earth, the Sun is huge. One million Earths could fit inside it. The Sun is composed mostly of hydrogen and helium gases. It has a central core that cannot be seen directly but oute ...
PDF, 95k
... (Observatory of Geneva, Switzerland), more than 120 extrasolar planets have been detected. Most of these discoveries were made by using techniques exploiting the effects of gravity, which are significant in the case of large planets . The transit of smaller Earth -sized planets in front of a star, s ...
... (Observatory of Geneva, Switzerland), more than 120 extrasolar planets have been detected. Most of these discoveries were made by using techniques exploiting the effects of gravity, which are significant in the case of large planets . The transit of smaller Earth -sized planets in front of a star, s ...
Information on internal structure from shape, gravity field and
... • From a spacecraft flyby, M can be determined with great accuracy. J2 and possibly other low-degree gravity coefficient are obtained with less accuracy • With an orbiting spacecraft, the gravity field can be determined up to high degree (Mars up to ℓ ≈ 60, Earth up to ℓ ≈ 180) • The acceleration of ...
... • From a spacecraft flyby, M can be determined with great accuracy. J2 and possibly other low-degree gravity coefficient are obtained with less accuracy • With an orbiting spacecraft, the gravity field can be determined up to high degree (Mars up to ℓ ≈ 60, Earth up to ℓ ≈ 180) • The acceleration of ...
Science Fast Facts
... “captured” by the gravity of the larger object. If it slowed down enough, it would fall into the larger object. For example, if the moon slowed down, Earth’s gravity would pull it down to earth. If it moved more rapidly it would spin off into space. ...
... “captured” by the gravity of the larger object. If it slowed down enough, it would fall into the larger object. For example, if the moon slowed down, Earth’s gravity would pull it down to earth. If it moved more rapidly it would spin off into space. ...
Astronomy Powerpoint - Worth County Schools
... Most scientists believe that about 5 billion years ago, a gigantic cloud of gases and dust, called a nebula, was disturbed and began to spin. Something disturbed the nebula causing it to spin As it spun, material clumped together. Intense heat and pressure created our sun ...
... Most scientists believe that about 5 billion years ago, a gigantic cloud of gases and dust, called a nebula, was disturbed and began to spin. Something disturbed the nebula causing it to spin As it spun, material clumped together. Intense heat and pressure created our sun ...
Scientific Revolution - Kapteyn Astronomical Institute
... nesting these solids, each encased in a sphere, within one another would produce six layers, corresponding to the six known planets ...
... nesting these solids, each encased in a sphere, within one another would produce six layers, corresponding to the six known planets ...
File
... Saturn has several concentric major rings visible from Earth. The brightest ring is separated from a fainter broad outer ring by an apparent gap called Cassini’s division. We know that the rings are not solid objects, because the rotation speed of the outer rings is slower than that of rings closer ...
... Saturn has several concentric major rings visible from Earth. The brightest ring is separated from a fainter broad outer ring by an apparent gap called Cassini’s division. We know that the rings are not solid objects, because the rotation speed of the outer rings is slower than that of rings closer ...
Deep Space Mystery Note Form 2
... expanding gases to glow briefly and brightly. During this short interval, a supernova can radiate as much energy as our Sun could emit over its life span. The explosion expels much or all of the star’s material and causes a shock wave into the surrounding interstellar medium. The interstellar medium ...
... expanding gases to glow briefly and brightly. During this short interval, a supernova can radiate as much energy as our Sun could emit over its life span. The explosion expels much or all of the star’s material and causes a shock wave into the surrounding interstellar medium. The interstellar medium ...
Exam # 2 – Tue 11/08/2011
... C. a helium nucleus weighs less than four hydrogen nuclei D. fusion can only occur in the centers of stars E. helium is made of antimatter 25. Sunspots are dark because A. they are so hot that they emit most of their energy in gamma rays B. locally heavy solar winds blow out the solar flame C. they ...
... C. a helium nucleus weighs less than four hydrogen nuclei D. fusion can only occur in the centers of stars E. helium is made of antimatter 25. Sunspots are dark because A. they are so hot that they emit most of their energy in gamma rays B. locally heavy solar winds blow out the solar flame C. they ...
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.