Astronomy 120: Quantitative Reasoning
... For example; the radius of the star Fred is 6.96 × 1012 cm , what does this mean ? Equivalently the radius of Fred is 100 R ο . This means Fred is 100 times bigger than the Sun. Thirdly: less emphasis is placed on using a calculator – so less chance to make a mistake. Often after the ratio is formed ...
... For example; the radius of the star Fred is 6.96 × 1012 cm , what does this mean ? Equivalently the radius of Fred is 100 R ο . This means Fred is 100 times bigger than the Sun. Thirdly: less emphasis is placed on using a calculator – so less chance to make a mistake. Often after the ratio is formed ...
The most important questions to study for the exam
... • the speeding up and slowing down of the planet as it moves in an elliptical orbit around the Sun. 8. The most important contribution that Copernicus made to astronomy was • to develop a mathematical model for a heliocentric cosmology. • to develop a mathematical model for a geocentric cosmology. • ...
... • the speeding up and slowing down of the planet as it moves in an elliptical orbit around the Sun. 8. The most important contribution that Copernicus made to astronomy was • to develop a mathematical model for a heliocentric cosmology. • to develop a mathematical model for a geocentric cosmology. • ...
PowerPoint. - teachearthscience.org
... The apparent wobble of stars due to the gravitational influence of planets is evidence of the presence of one or more planets orbiting distant stars. This has become a technique to permit us to infer the presence of planets around other stars. Planets outside our own solar system are known as exopl ...
... The apparent wobble of stars due to the gravitational influence of planets is evidence of the presence of one or more planets orbiting distant stars. This has become a technique to permit us to infer the presence of planets around other stars. Planets outside our own solar system are known as exopl ...
Comets and Mass Extinction
... • As large as 2.5 times all of the other planets in the solar system combined, known as a “Gas Giant,” 318 times as massive as the earth and therefore has a much greater gravitational pull, holding at least 63 moons in its own orbit, often termed a “failed star” as it is nearly as large as the small ...
... • As large as 2.5 times all of the other planets in the solar system combined, known as a “Gas Giant,” 318 times as massive as the earth and therefore has a much greater gravitational pull, holding at least 63 moons in its own orbit, often termed a “failed star” as it is nearly as large as the small ...
Earth
... they spend eternity orbiting around their parent star. How Did The Solar System form? Scientists believe that the Solar System evolved from a giant cloud of dust and gas. They believe that this dust and gas began to collapse under the weight of its own gravity. As it did so, the matter contained wit ...
... they spend eternity orbiting around their parent star. How Did The Solar System form? Scientists believe that the Solar System evolved from a giant cloud of dust and gas. They believe that this dust and gas began to collapse under the weight of its own gravity. As it did so, the matter contained wit ...
Tuesday, October 28th "The Formation and Evolution of Galaxies"
... called "supergranules." Supergranules are like bubbles in a pot of boiling water amplified to the scale of a star; on the Sun they measure some 30,000 km across (twice as wide as Earth) and are made of seething hot magnetized plasma. Magnetic fields at the centre of these bubbles are swept out to th ...
... called "supergranules." Supergranules are like bubbles in a pot of boiling water amplified to the scale of a star; on the Sun they measure some 30,000 km across (twice as wide as Earth) and are made of seething hot magnetized plasma. Magnetic fields at the centre of these bubbles are swept out to th ...
AST 101 Lecture 15 Is Pluto a Planet?
... Characteristics of the Major Planets • Planets orbit in or near the ecliptic. – the greatest inclination to the ecliptic is 7o (Mercury). ...
... Characteristics of the Major Planets • Planets orbit in or near the ecliptic. – the greatest inclination to the ecliptic is 7o (Mercury). ...
AST 101 Lecture 17 Is Pluto a Planet?
... • a is the semimajor axis of the orbit in AU • n is an index: – Mercury: -1 (set 2-1 = 0) – Venus: 0 – Earth: 1 – Mars: 2 – Jupiter: 4 – Saturn: 5 ...
... • a is the semimajor axis of the orbit in AU • n is an index: – Mercury: -1 (set 2-1 = 0) – Venus: 0 – Earth: 1 – Mars: 2 – Jupiter: 4 – Saturn: 5 ...
(the largest solar system planet) represents at
... Students will learn the basic differences between terrestrial and outer planets Students will construct a scale model of the solar system and understand planetary distances. Students will understand Kepler’s laws of planetary motion and the importance to modern astronomy. ...
... Students will learn the basic differences between terrestrial and outer planets Students will construct a scale model of the solar system and understand planetary distances. Students will understand Kepler’s laws of planetary motion and the importance to modern astronomy. ...
A Relative Model of the Solar System: Preparation
... The solar system includes the Sun, the nine Classical Planets, their moons, as well as newly discovered dwarf planets, comets, asteroids, and meteoroids which orbit the sun. In this lab activity we will make a walking model of the Solar System. 1. Using page 542-543 of the textbook, write the order ...
... The solar system includes the Sun, the nine Classical Planets, their moons, as well as newly discovered dwarf planets, comets, asteroids, and meteoroids which orbit the sun. In this lab activity we will make a walking model of the Solar System. 1. Using page 542-543 of the textbook, write the order ...
Solar System
... counterclockwise direction. When viewed from a location above the North pole, 6 of the 9 planets rotate (spin) in a counterclockwise direction; one rotates almost on its side (Uranus); one rotates clockwise – but very slowly (Venus),; and the other, Pluto, rotates at an angle of 120o. All of the maj ...
... counterclockwise direction. When viewed from a location above the North pole, 6 of the 9 planets rotate (spin) in a counterclockwise direction; one rotates almost on its side (Uranus); one rotates clockwise – but very slowly (Venus),; and the other, Pluto, rotates at an angle of 120o. All of the maj ...
Solar System Book solarsystem3
... the vastness of space. For some students, this perspective might provide a sense of scale for their own panoramas and concerns. It may also help students understand why many people are excited about the prospects of discovering and exploring new solar systems, both within our galaxy and beyond. Key ...
... the vastness of space. For some students, this perspective might provide a sense of scale for their own panoramas and concerns. It may also help students understand why many people are excited about the prospects of discovering and exploring new solar systems, both within our galaxy and beyond. Key ...
lecture3
... The beginning of the modern age in Astronomy began with Nicholas Copernicus (1473 – 1543), a cleric with independent fortune. Copernicus suggested that the Sun is at the center of the universe (solar system), and that the Earth rotates on its axis once a day to give the apparent daily turn of the st ...
... The beginning of the modern age in Astronomy began with Nicholas Copernicus (1473 – 1543), a cleric with independent fortune. Copernicus suggested that the Sun is at the center of the universe (solar system), and that the Earth rotates on its axis once a day to give the apparent daily turn of the st ...
powerpoint version
... (the Sun constitutes 99.85% of the total mass of the solar system) Mass divided by volume gives us the Sun’s average density = 1410 kg per cubic metre The Sun is made up of gas - it is too hot to be liquid. PHYS1142 ...
... (the Sun constitutes 99.85% of the total mass of the solar system) Mass divided by volume gives us the Sun’s average density = 1410 kg per cubic metre The Sun is made up of gas - it is too hot to be liquid. PHYS1142 ...
ASTR1010_HW06
... hotter than the outer part because 1) the inner part is closer to the protostar that is forming, and 2) because of Kelvin-Helmholtz contraction, the inner parts collapsed a longer way than the outer parts and so converted more gravitational potential energy into thermal energy. ...
... hotter than the outer part because 1) the inner part is closer to the protostar that is forming, and 2) because of Kelvin-Helmholtz contraction, the inner parts collapsed a longer way than the outer parts and so converted more gravitational potential energy into thermal energy. ...
Quiz Maker - Geneva 304
... 82. What are the atmospheres of Venus and Mars mainly composed of? 83. Mercury, _____, asteroids, and almost all of the moons of the outer planets have very thin or no atmospheres because of their small size and low gravity, which allows almost all of the gases above the surface to escape. 84. How d ...
... 82. What are the atmospheres of Venus and Mars mainly composed of? 83. Mercury, _____, asteroids, and almost all of the moons of the outer planets have very thin or no atmospheres because of their small size and low gravity, which allows almost all of the gases above the surface to escape. 84. How d ...
Week 2 File
... approximately 1 arcminute to be measured, a telescope is required for bejer accuracy). Tycho believed in a geocentric model of the universe because he could not detect the parallax of stars tha ...
... approximately 1 arcminute to be measured, a telescope is required for bejer accuracy). Tycho believed in a geocentric model of the universe because he could not detect the parallax of stars tha ...
the Powerpoint
... Venus and Earth are similar in size, mass, composition, and distance from the Sun but, Venus has no ocean. Venus is covered by thick, rapidly spinning clouds that trap surface heat, creating a scorched greenhouse-like world with temperatures hot enough to melt lead and pressure so intense that stand ...
... Venus and Earth are similar in size, mass, composition, and distance from the Sun but, Venus has no ocean. Venus is covered by thick, rapidly spinning clouds that trap surface heat, creating a scorched greenhouse-like world with temperatures hot enough to melt lead and pressure so intense that stand ...
The story of Mercury and Vulcan, as told by Einstein The
... It was only in 1916 when Einstein’s theory of General Relativity (GR) correctly accounted for this deficit, supporting the idea that Vulcan does not exist. According to GR, you can think of space as a water bed and each star as a ball resting on the water bed’s surface forcing it to curve depending ...
... It was only in 1916 when Einstein’s theory of General Relativity (GR) correctly accounted for this deficit, supporting the idea that Vulcan does not exist. According to GR, you can think of space as a water bed and each star as a ball resting on the water bed’s surface forcing it to curve depending ...
Meet the Jovians` Hot Siblings DONT ERASE
... Hot Neptunes are Jovian-like planets that orbit their parent stars very closely. • Their mass and size more closely resembles that of Neptune and Uranus rather than the large size of Saturn and Jupiter. • Unlike Neptune and Uranus, these planets are assumed to be very hot in temperature because they ...
... Hot Neptunes are Jovian-like planets that orbit their parent stars very closely. • Their mass and size more closely resembles that of Neptune and Uranus rather than the large size of Saturn and Jupiter. • Unlike Neptune and Uranus, these planets are assumed to be very hot in temperature because they ...
Astronomy = Timekeeping
... b. Of precession of Earth’s axis of rotation c. Tilt of the Earth’s axis of rotation to the ecliptic causes sun to shine more directly in summer d. The winter solstice is in December and the summer solstice is in June e. We are closer to the sun in the summer so it’s ...
... b. Of precession of Earth’s axis of rotation c. Tilt of the Earth’s axis of rotation to the ecliptic causes sun to shine more directly in summer d. The winter solstice is in December and the summer solstice is in June e. We are closer to the sun in the summer so it’s ...
the size and structure of the universe
... 6. GALAXIES are the major features of the universe - An average galaxy (Milky Way) consists of 100’s of billions of stars (100,000,000,000) and a similar # of star systems - Diameter of an average galaxy (Milky Way) = 100,000 LIGHT YEARS ...
... 6. GALAXIES are the major features of the universe - An average galaxy (Milky Way) consists of 100’s of billions of stars (100,000,000,000) and a similar # of star systems - Diameter of an average galaxy (Milky Way) = 100,000 LIGHT YEARS ...
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.