A n A n c i e n... How Astronomers Know the Vast Scale of Cosmic Time
... Over a hundred of these stars are now known to have planets, just the way the Sun does. Some stars show evidence of being much older than the Sun, and some are just gathering together from the raw material of the galaxy. One of the nicest things about the universe is that it sends its information to ...
... Over a hundred of these stars are now known to have planets, just the way the Sun does. Some stars show evidence of being much older than the Sun, and some are just gathering together from the raw material of the galaxy. One of the nicest things about the universe is that it sends its information to ...
Physics 235 Chapter 5 Gravitation
... galaxy. The rotational curve can only be explained if we assume that there is halo of “dark matter” in universe, distributed throughout the galaxy. The solar systems in most galaxies carry out an orbit around the center of the galaxy. Since it is assumed that a massive black hole is located in the c ...
... galaxy. The rotational curve can only be explained if we assume that there is halo of “dark matter” in universe, distributed throughout the galaxy. The solar systems in most galaxies carry out an orbit around the center of the galaxy. Since it is assumed that a massive black hole is located in the c ...
Atoms and Stars IST 3360 and IST 1990
... • Pluto discovered 1930, orbit radius ~30 AU • Five new candidate planets since 2002 (see next slide) • Definition of a planet is in dispute. Also casts doubt on whether or not Pluto is a planet • Newest (Xena) may have the best claim – size, moon • These are in or near the “Kuiper Belt” (asteroids) ...
... • Pluto discovered 1930, orbit radius ~30 AU • Five new candidate planets since 2002 (see next slide) • Definition of a planet is in dispute. Also casts doubt on whether or not Pluto is a planet • Newest (Xena) may have the best claim – size, moon • These are in or near the “Kuiper Belt” (asteroids) ...
Sample pages 2 PDF
... The celestial objects show an apparent motion in the sky, rising, achieving a maximum altitude above the horizon, and setting. The objects can be observable during some part of the year or could be not observable at all, at the position of the observer. Only circumpolar objects can be observed over ...
... The celestial objects show an apparent motion in the sky, rising, achieving a maximum altitude above the horizon, and setting. The objects can be observable during some part of the year or could be not observable at all, at the position of the observer. Only circumpolar objects can be observed over ...
Sky & Astronomy - Wayne State University Physics and Astronomy
... • His telescope enabled him to see many, many new fainter stars that had never been seen before • The superior resolution and magnification of his telescope enabled him to – see pits and craters on the Moon – see spots on the Sun : • these objects are not static • they decay, they are not god-like. ...
... • His telescope enabled him to see many, many new fainter stars that had never been seen before • The superior resolution and magnification of his telescope enabled him to – see pits and craters on the Moon – see spots on the Sun : • these objects are not static • they decay, they are not god-like. ...
good - Cosmos
... to Mars is deduced, it is fitting that we accept with grateful minds this gift from God, and both acknowledge and build upon it. Hence, let us work upon it so as to at last track down the real form of celestial ...
... to Mars is deduced, it is fitting that we accept with grateful minds this gift from God, and both acknowledge and build upon it. Hence, let us work upon it so as to at last track down the real form of celestial ...
sections 16-18 instructor notes
... v. by determining the peculiar velocity of the Sun relative to nearby galaxies in the Local Group. It is not as simple a task as it might seem, owing to the intrinsic velocities of other galaxies in the system. An estimate of the local circular velocity from such an analysis is that of Arp (A&A, 15 ...
... v. by determining the peculiar velocity of the Sun relative to nearby galaxies in the Local Group. It is not as simple a task as it might seem, owing to the intrinsic velocities of other galaxies in the system. An estimate of the local circular velocity from such an analysis is that of Arp (A&A, 15 ...
Chapter 8 Moons, Rings, and Plutoids
... • The first Kuiper belt objects were observed in the 1990s, and more than 1200 are now known. Some of them are comparable in size to Pluto. • These images show Eris and its moon Dysnomia. ...
... • The first Kuiper belt objects were observed in the 1990s, and more than 1200 are now known. Some of them are comparable in size to Pluto. • These images show Eris and its moon Dysnomia. ...
Earth Science Exams and Keys 2014 Season
... 60. Which statement best describes how are galaxies distributed in space? A) the galaxies lie on sheets and chains surrounding empty space B) the galaxies are distributed uniformly in space C) there are a few large clusters of galaxies with nothing in between D) there are many clusters of galaxies n ...
... 60. Which statement best describes how are galaxies distributed in space? A) the galaxies lie on sheets and chains surrounding empty space B) the galaxies are distributed uniformly in space C) there are a few large clusters of galaxies with nothing in between D) there are many clusters of galaxies n ...
chap11 (WP)
... The rates of the PP chains and the CNO cycle are known from laboratory-based experiments. The rates are used in model calculations for energy production in the Sun, and the results agree well with the Sun's observed luminosity, which is the energy output of the Sun per unit time. Further experimenta ...
... The rates of the PP chains and the CNO cycle are known from laboratory-based experiments. The rates are used in model calculations for energy production in the Sun, and the results agree well with the Sun's observed luminosity, which is the energy output of the Sun per unit time. Further experimenta ...
Trilogy Booklet for UN - with all graphics in low resolution
... life on Earth. People came to the belief that Sun, Moon and stars even were gods themselves, who needed to be worshipped. It consequently became increasingly important to dedicate rituals, held at specific times, to the gods. The architectural framework for the rituals became an instrument to determ ...
... life on Earth. People came to the belief that Sun, Moon and stars even were gods themselves, who needed to be worshipped. It consequently became increasingly important to dedicate rituals, held at specific times, to the gods. The architectural framework for the rituals became an instrument to determ ...
Pretty Pictures of the Cosmos
... bubble, blown by winds from the brightest star visible within the bubble's boundary. The bubble's expansion is constrained by the surrounding material. About 10 light-years in diameter, if the Bubble nebula were centered on the Sun, the Sun's nearest stellar neighbor, Alpha Centauri, would also be e ...
... bubble, blown by winds from the brightest star visible within the bubble's boundary. The bubble's expansion is constrained by the surrounding material. About 10 light-years in diameter, if the Bubble nebula were centered on the Sun, the Sun's nearest stellar neighbor, Alpha Centauri, would also be e ...
TLW explain how fossils provide evidence of the history of the Earth.
... Analysis of the rock layers has helped map previously existing life. These fossils have, in turn, given clues to the age of the rocks in which they are embedded. Earth’s surface is constantly changing. Rock layers provide a record of Earth’s geologic history, and fossils in sedimentary rock help sci ...
... Analysis of the rock layers has helped map previously existing life. These fossils have, in turn, given clues to the age of the rocks in which they are embedded. Earth’s surface is constantly changing. Rock layers provide a record of Earth’s geologic history, and fossils in sedimentary rock help sci ...
Exam 2 Solution
... 20.) Lalande 21185 is an M2 red dwarf about 8 LY away and Betelgeuse is an M2 red supergiant about 600 LY away. Both have a temperature of about 3500 K, but we can see Betelgeuse and not Lalande 21185 with the naked eye because… A – Betelgeuse is so much more luminous. B – Betelgeuse has an apparent ...
... 20.) Lalande 21185 is an M2 red dwarf about 8 LY away and Betelgeuse is an M2 red supergiant about 600 LY away. Both have a temperature of about 3500 K, but we can see Betelgeuse and not Lalande 21185 with the naked eye because… A – Betelgeuse is so much more luminous. B – Betelgeuse has an apparent ...
Chapter 6 The Outer Solar System © 2010 Pearson Education, Inc.
... How did they get there? • Kuiper belt comets formed in the Kuiper belt: flat plane, aligned with the plane of planetary orbits, orbiting in the same direction as the planets • Oort cloud comets were once closer to the Sun, but they were kicked out there by gravitational interactions with jovian pla ...
... How did they get there? • Kuiper belt comets formed in the Kuiper belt: flat plane, aligned with the plane of planetary orbits, orbiting in the same direction as the planets • Oort cloud comets were once closer to the Sun, but they were kicked out there by gravitational interactions with jovian pla ...
Dynamical evolution of planetary systems
... There are two possible mechanisms by which we envision that giant planets can form. The first is nicknamed the “core-accretion mechanism”: the coagulation of solid particles forms a core typically of about 10 Earth masses (M⊕ ) while the gas is still present in the proto-planetary disk; the core the ...
... There are two possible mechanisms by which we envision that giant planets can form. The first is nicknamed the “core-accretion mechanism”: the coagulation of solid particles forms a core typically of about 10 Earth masses (M⊕ ) while the gas is still present in the proto-planetary disk; the core the ...
Mar 2016 - Bays Mountain Park
... BMACers wanting to help need to show up by 9 a.m. If you bring a telescope, it MUST have a proper solar filter of at least neutral density 5. If the weather is poor, the viewing is cancelled. For more info, visit this web page: http://www.baysmountain.com/ ...
... BMACers wanting to help need to show up by 9 a.m. If you bring a telescope, it MUST have a proper solar filter of at least neutral density 5. If the weather is poor, the viewing is cancelled. For more info, visit this web page: http://www.baysmountain.com/ ...
Investigate Planets, Stars, Galaxies, and the Universe
... rounding the Sun at a distance of 35 feet — halfway to the pitcher’s mound. Earth becomes the size of a sunflower seed about 90 feet away, orbiting at first base. Jupiter is now a one-inch marble 450 feet away. It is orbiting just beyond Our star, the Sun, is about 93,000,000 miles from the fence in ...
... rounding the Sun at a distance of 35 feet — halfway to the pitcher’s mound. Earth becomes the size of a sunflower seed about 90 feet away, orbiting at first base. Jupiter is now a one-inch marble 450 feet away. It is orbiting just beyond Our star, the Sun, is about 93,000,000 miles from the fence in ...
Life Cycle of the Stars
... the evolution of stars somewhat more and somewhat less massive than the Sun. The shape of the paths is similar, but they wind up in different places on the main sequence. ...
... the evolution of stars somewhat more and somewhat less massive than the Sun. The shape of the paths is similar, but they wind up in different places on the main sequence. ...
Isotopes Tell Origin and Operation of the Sun
... All neon components in meteorites [36-41] and the bulk neon in air, in the solar wind, and in meteorites lie along the dashed fractionation line in Figure 5, after correcting for neon made by cosmic-ray induced spallation reactions [42]. The site of such severe fractionation was not recognized in 1 ...
... All neon components in meteorites [36-41] and the bulk neon in air, in the solar wind, and in meteorites lie along the dashed fractionation line in Figure 5, after correcting for neon made by cosmic-ray induced spallation reactions [42]. The site of such severe fractionation was not recognized in 1 ...
Astronomy for Kids - Jupiter
... King of the Planets The fifth planet in our solar system is also the largest planet in our system, both in size and mass. Jupiter's diameter of over 85,000 miles is almost twelve times that of Earth and its mass is well over twice as much as all the rest of the planets put together. These facts make ...
... King of the Planets The fifth planet in our solar system is also the largest planet in our system, both in size and mass. Jupiter's diameter of over 85,000 miles is almost twelve times that of Earth and its mass is well over twice as much as all the rest of the planets put together. These facts make ...
The early stages of planet formation Ormel, Christiaan Wessel
... another milestone in planetary science exploration.1 In Fg. 1.1 the masses and the semimajor axes of the exoplanets are plotted. Most of the planets are found indirectly, by measuring the motion of the star induced by the presence of a planet. Both the planet as well as the star rotate around their ...
... another milestone in planetary science exploration.1 In Fg. 1.1 the masses and the semimajor axes of the exoplanets are plotted. Most of the planets are found indirectly, by measuring the motion of the star induced by the presence of a planet. Both the planet as well as the star rotate around their ...
the printable Observing Olympics Object Info Sheet in pdf
... stars. NGC6811 lies far away from the Galactic Plane like so many other Open Clusters, and is approximately 3,600 ± 300 light years distant and 14 – 20 light years across. It has a total luminosity of 2,100 Suns and is approximately 1.00 ± 0.17 Billion years old. Originally it probably contained abo ...
... stars. NGC6811 lies far away from the Galactic Plane like so many other Open Clusters, and is approximately 3,600 ± 300 light years distant and 14 – 20 light years across. It has a total luminosity of 2,100 Suns and is approximately 1.00 ± 0.17 Billion years old. Originally it probably contained abo ...
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.