Solutions for homework #5, AST 203, Spring 2009
... masses. But, even if it were a globular cluster, it would be way too compact – we want it to fit inside the orbit of 5.2 × 1014 m, which is roughly 0.01 of a parsec. A typical globular cluster would be at least several parsecs in radius (typically, 10pc). In fact, we know of only one type of object ...
... masses. But, even if it were a globular cluster, it would be way too compact – we want it to fit inside the orbit of 5.2 × 1014 m, which is roughly 0.01 of a parsec. A typical globular cluster would be at least several parsecs in radius (typically, 10pc). In fact, we know of only one type of object ...
The Sun - TeacherWeb
... From Sun to Earth Most people think that heat from the Sun warms the Earth. But heat has to travel through matter to get from one place to another. So while the Sun’s energy travels through the vacuum of space, that energy doesn’t heat space. Energy from the Sun travels to Earth as electromagnetic w ...
... From Sun to Earth Most people think that heat from the Sun warms the Earth. But heat has to travel through matter to get from one place to another. So while the Sun’s energy travels through the vacuum of space, that energy doesn’t heat space. Energy from the Sun travels to Earth as electromagnetic w ...
The Little Star That Could - Challenger Learning Center
... Gravity is the force that keeps planets in orbit around the Sun and governs the rest of the motion in the Solar System. (5 – 8 Standard) ...
... Gravity is the force that keeps planets in orbit around the Sun and governs the rest of the motion in the Solar System. (5 – 8 Standard) ...
astronomy
... stones that are thought to have been aligned to track the movements of the Sun and Moon and to measure eclipses. Around 1300 BC, Chinese astronomers embarked on a long, precise study of eclipses, recording 900 solar eclipses and 600 lunar eclipses over the next 2600 years. In about 700 BC, the Babyl ...
... stones that are thought to have been aligned to track the movements of the Sun and Moon and to measure eclipses. Around 1300 BC, Chinese astronomers embarked on a long, precise study of eclipses, recording 900 solar eclipses and 600 lunar eclipses over the next 2600 years. In about 700 BC, the Babyl ...
“From Planetesimals to Brown Dwarfs: What is a Planet
... history from planets in our Solar System, since their current orbits would have been inside the supergiant star that preceded the central pulsar. The next large group of (gas giant) exoplanets (well over 100 at this point), were discovered by the radial velocity variability they induce in their hos ...
... history from planets in our Solar System, since their current orbits would have been inside the supergiant star that preceded the central pulsar. The next large group of (gas giant) exoplanets (well over 100 at this point), were discovered by the radial velocity variability they induce in their hos ...
Planet Building Part 4
... rare, though we know they are common (in our SS and in others). • To solve the Jovian problem, astronomers have posited that Jovian formation was from direct collapse. – In other words, the condensation and accretion ...
... rare, though we know they are common (in our SS and in others). • To solve the Jovian problem, astronomers have posited that Jovian formation was from direct collapse. – In other words, the condensation and accretion ...
Garden-Variety Star - Wayne State University Physics and Astronomy
... It is visible during total solar eclipses as a pearly-white glow around the dark Moon Total solar eclipse in 1973 The corona has a very high temperature of ~1-2 million K It is known to be very hot because it contains multiply ionized atoms At very high temperatures, atoms like iron can have 9 to 13 ...
... It is visible during total solar eclipses as a pearly-white glow around the dark Moon Total solar eclipse in 1973 The corona has a very high temperature of ~1-2 million K It is known to be very hot because it contains multiply ionized atoms At very high temperatures, atoms like iron can have 9 to 13 ...
Sun Powerpoint
... OUR STAR – TIMES! • The core rotates at the same rate but the outer parts of the Sun do not! • 34 Earth days to rotate at Poles • 25 Earth days to rotate at Equator • There is no period of revolution… http://www.lcsd.gov.hk/CE/Museum/Space/EducationResource/Universe/framed_e/lecture/ch11/imgs/rotat ...
... OUR STAR – TIMES! • The core rotates at the same rate but the outer parts of the Sun do not! • 34 Earth days to rotate at Poles • 25 Earth days to rotate at Equator • There is no period of revolution… http://www.lcsd.gov.hk/CE/Museum/Space/EducationResource/Universe/framed_e/lecture/ch11/imgs/rotat ...
Solar System
... 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of it’s subsystems can do by themselves 4-5 ES1A The earth is a huge ball in space. People are held on it’s s ...
... 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of it’s subsystems can do by themselves 4-5 ES1A The earth is a huge ball in space. People are held on it’s s ...
Sun Web quest
... 9. How large is the sun compared to Jupiter? How large is Jupiter compared to the Earth? Website address: ...
... 9. How large is the sun compared to Jupiter? How large is Jupiter compared to the Earth? Website address: ...
Volume 2 - Euresis Journal
... • The stars are immensely distant suns, each orbited by their own planetary systems. • There is an infinity of other stars and planets, all inhabited. The fact that these conjectures, made 25 years before Galileo’s first use of the telescope, were not based on any scientific evidence, but rather o ...
... • The stars are immensely distant suns, each orbited by their own planetary systems. • There is an infinity of other stars and planets, all inhabited. The fact that these conjectures, made 25 years before Galileo’s first use of the telescope, were not based on any scientific evidence, but rather o ...
a MS Word version.
... 6. List the major planets in order from the Sun. Give the approx. semimajor axis lengths in AU and their approx. planetary diameters in "Earth diameters". ...
... 6. List the major planets in order from the Sun. Give the approx. semimajor axis lengths in AU and their approx. planetary diameters in "Earth diameters". ...
Assessing the massive young Sun hypothesis to solve the warm
... discussed above, Kasting (1988) argues that the solar flux cannot have been more than 10% higher at any point in the past since Earth has not lost its oceans due to a runaway moist greenhouse atmosphere. This provides an upper limit on the initial mass factor of mf = 1.07, and Sackmann & Boothroyd ( ...
... discussed above, Kasting (1988) argues that the solar flux cannot have been more than 10% higher at any point in the past since Earth has not lost its oceans due to a runaway moist greenhouse atmosphere. This provides an upper limit on the initial mass factor of mf = 1.07, and Sackmann & Boothroyd ( ...
A Human-Powered Orrery - Astronomical Society of the Pacific
... Visualizing planetary motions and their relationships to each other is difficult for many learners. In many of our outreach programs over the years, we modeled the motion of the Earth around the Sun and the seasonal constellations, but this did not involve a lot of audience participation. Then, in 2 ...
... Visualizing planetary motions and their relationships to each other is difficult for many learners. In many of our outreach programs over the years, we modeled the motion of the Earth around the Sun and the seasonal constellations, but this did not involve a lot of audience participation. Then, in 2 ...
HR 6060: The Closest Ever Solar Twin
... Sco) makes it the best ever solar twin (Porto de Mello & da Silva 1997). This result is a by-product of a detailed abundance survey of 25 chemical elements in 15 nearby G-type stars, with very high S/N, high resolution spectra. Atmospheric parameters were determined from the excitation & ionization ...
... Sco) makes it the best ever solar twin (Porto de Mello & da Silva 1997). This result is a by-product of a detailed abundance survey of 25 chemical elements in 15 nearby G-type stars, with very high S/N, high resolution spectra. Atmospheric parameters were determined from the excitation & ionization ...
Standard Solar Model
... The final assumption of the standard solar model is that the sun was initially of a homogeneous, primordial composition, and highly convective at its main sequence turn on. Since heavy elements are neither created nor destroyed in the thermonuclear reactions in a solar-type star, they provide a reco ...
... The final assumption of the standard solar model is that the sun was initially of a homogeneous, primordial composition, and highly convective at its main sequence turn on. Since heavy elements are neither created nor destroyed in the thermonuclear reactions in a solar-type star, they provide a reco ...
Hubble - 15 Years of Discovery
... a planet and it has been named Sedna, after an Inuit goddess. Sedna may be 1500 km in diameter, that’s about three quarters the size of Pluto, but it is so far away that it appears as just a small cluster of pixels even to Hubble. Nevertheless, it is the largest object discovered in the Solar System ...
... a planet and it has been named Sedna, after an Inuit goddess. Sedna may be 1500 km in diameter, that’s about three quarters the size of Pluto, but it is so far away that it appears as just a small cluster of pixels even to Hubble. Nevertheless, it is the largest object discovered in the Solar System ...
The Sun`s magnetic field
... electrons attached to an atom, so to break apart this part of the atom requires much greater energy. The force that binds the nucleus operates only over very short distances, and so atoms need to be close together before it can operate; but this brings the added complication as that the Sun is made ...
... electrons attached to an atom, so to break apart this part of the atom requires much greater energy. The force that binds the nucleus operates only over very short distances, and so atoms need to be close together before it can operate; but this brings the added complication as that the Sun is made ...
L5 Protoplanetary disks Part I
... Note that not all high Z material condenses at temperatures in the nebula. The dust to gas ratio is a function temperature, and thus of the distance from the star. Ice line In hot regions close to the star, only refractory “rocky” elements (iron, silicates) remain solid. In colder regions further aw ...
... Note that not all high Z material condenses at temperatures in the nebula. The dust to gas ratio is a function temperature, and thus of the distance from the star. Ice line In hot regions close to the star, only refractory “rocky” elements (iron, silicates) remain solid. In colder regions further aw ...
Grade 9 Botony: plant nutrition
... The sun is a star. It is our closest star, which is why it seems so different from the tiny stars we see at night. The sun is one of the stars in the Milky Way galaxy. Like other stars, the sun is a ball of burning gas made up of different layers. It has a core in the middle which is extreme ...
... The sun is a star. It is our closest star, which is why it seems so different from the tiny stars we see at night. The sun is one of the stars in the Milky Way galaxy. Like other stars, the sun is a ball of burning gas made up of different layers. It has a core in the middle which is extreme ...
File
... The diagram represents the Moon at four positions, A through D, in its orbit around Earth as viewed from above the North Pole (NP). The shaded parts of the Moon and Earth represent darkness. Identify the celestial object in our solar system that has a period of rotation that is most similar to the p ...
... The diagram represents the Moon at four positions, A through D, in its orbit around Earth as viewed from above the North Pole (NP). The shaded parts of the Moon and Earth represent darkness. Identify the celestial object in our solar system that has a period of rotation that is most similar to the p ...
Comets, vagrants of the universe
... students have done a study to find about comets are, their composition, where they are, their movements, differences between other stars, history of different "famous" comets and curiosities. The team has compiled all the information into a ‘Notebook field researcher’ for good planning and developme ...
... students have done a study to find about comets are, their composition, where they are, their movements, differences between other stars, history of different "famous" comets and curiosities. The team has compiled all the information into a ‘Notebook field researcher’ for good planning and developme ...
Today`s Powerpoint
... Halo: stars and globular clusters swarm around center of Milky Way. Very elliptical orbits with random orientations. They also cross the disk. Bulge: similar to halo. ...
... Halo: stars and globular clusters swarm around center of Milky Way. Very elliptical orbits with random orientations. They also cross the disk. Bulge: similar to halo. ...
Document
... =6&tbnid=JFAv4ExC3iWa1M:&tbnh=107&tbnw=143&prev=/images%3Fq%3Dcomet%26svnum %3D10%26hl%3Den%26lr%3D%26sa%3DG ...
... =6&tbnid=JFAv4ExC3iWa1M:&tbnh=107&tbnw=143&prev=/images%3Fq%3Dcomet%26svnum %3D10%26hl%3Den%26lr%3D%26sa%3DG ...
Solar System
The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.