Astronomy - Fort Thomas Independent Schools
... were fixed in a crystal sphere. Ptolemy: Wrote the Almagast, where he set forth the geocentric model in print. He used deferents and epicycles to explain the direct and retrograde motion of the planets as they orbited the Earth. Copernicus: Wrote the De Revolutionibus Orbium Coelestium, where he set ...
... were fixed in a crystal sphere. Ptolemy: Wrote the Almagast, where he set forth the geocentric model in print. He used deferents and epicycles to explain the direct and retrograde motion of the planets as they orbited the Earth. Copernicus: Wrote the De Revolutionibus Orbium Coelestium, where he set ...
Orbital Geometry Notes
... Johann Kepler • In 1600, Johann Kepler developed his “Laws of Planetary Motion.” He observed that the planets traveled in closed curves (ellipses), rather than circular paths. ...
... Johann Kepler • In 1600, Johann Kepler developed his “Laws of Planetary Motion.” He observed that the planets traveled in closed curves (ellipses), rather than circular paths. ...
Jeopardy Questions
... A: A line connecting a planet to the sun sweeps out equal areas in equal times as the planet travels around the ellipse. ...
... A: A line connecting a planet to the sun sweeps out equal areas in equal times as the planet travels around the ellipse. ...
Solar System Study Guide 1
... phase – One of the different shapes the moon seems to have as it orbits around Earth. revolution – The movement of any object in an orbit, such as Earth moving around the sun. axis – An imaginary line which runs through both poles of a planet. rotation – The motion of a planet or other object as it ...
... phase – One of the different shapes the moon seems to have as it orbits around Earth. revolution – The movement of any object in an orbit, such as Earth moving around the sun. axis – An imaginary line which runs through both poles of a planet. rotation – The motion of a planet or other object as it ...
Lesson plan on the solar system for Year 6
... NB: The Solar System - concept cartoon The Sun is a star – hydrogen and helium – produces light. A planet does not. (Jupiter, Saturn, Uranus, Neptune, Pluto are made of gas) Definition from International Astronomers Union: "A planet is a celestial body that (a) has sufficient mass for its self-gravi ...
... NB: The Solar System - concept cartoon The Sun is a star – hydrogen and helium – produces light. A planet does not. (Jupiter, Saturn, Uranus, Neptune, Pluto are made of gas) Definition from International Astronomers Union: "A planet is a celestial body that (a) has sufficient mass for its self-gravi ...
Lesson Plan
... NB: The Solar System - concept cartoon The Sun is a star – hydrogen and helium – produces light. A planet does not. (Jupiter, Saturn, Uranus, Neptune, Pluto are made of gas) Definition from International Astronomers Union: "A planet is a celestial body that (a) has sufficient mass for its self ...
... NB: The Solar System - concept cartoon The Sun is a star – hydrogen and helium – produces light. A planet does not. (Jupiter, Saturn, Uranus, Neptune, Pluto are made of gas) Definition from International Astronomers Union: "A planet is a celestial body that (a) has sufficient mass for its self ...
astronomy study guide
... Describe Kepler’s 3 laws of planetary motion (in your own words) and give examples for each. Do planets located further from the sun or closer to the sun have a longer orbital period around the sun? Which of Kepler’s Laws proves this? Earth-Sun-Moon System What are rotation and revolution? How ...
... Describe Kepler’s 3 laws of planetary motion (in your own words) and give examples for each. Do planets located further from the sun or closer to the sun have a longer orbital period around the sun? Which of Kepler’s Laws proves this? Earth-Sun-Moon System What are rotation and revolution? How ...
Day-9
... 2: Answer had nothing to do with question 1: 5hr, 9.5hr, 8hr, 72 hrs,6 min, “Couple of days”, No Answer ...
... 2: Answer had nothing to do with question 1: 5hr, 9.5hr, 8hr, 72 hrs,6 min, “Couple of days”, No Answer ...
Astronomers use astronomical units(AU) to measure distances
... • According to this new definition, an object must meet three criteria in order to be classified as a planet. – It must orbit the Sun. – It must be big enough for gravity to squash it into a ...
... • According to this new definition, an object must meet three criteria in order to be classified as a planet. – It must orbit the Sun. – It must be big enough for gravity to squash it into a ...
Study Guide for 1ST Astronomy Exam
... Study Guide for 1ST Astronomy Exam The successful will be able to… Unit 1: Our Planetary Neighborhood Write the planets in order of increasing distance from the Sun, Define a dwarf planet, Identify dwarf planets in the solar system, Using a ratio determine how much larger one object is compa ...
... Study Guide for 1ST Astronomy Exam The successful will be able to… Unit 1: Our Planetary Neighborhood Write the planets in order of increasing distance from the Sun, Define a dwarf planet, Identify dwarf planets in the solar system, Using a ratio determine how much larger one object is compa ...
Chapter 2 History
... view and posited a model in which the earth, a counter-earth, the seven planets and the fixed stars all circle about an (unseen) central fire. The earth’s revolution around the fire was believed to occur on its own axis during the period of a day and a night. However, the planetary orbits still deviate ...
... view and posited a model in which the earth, a counter-earth, the seven planets and the fixed stars all circle about an (unseen) central fire. The earth’s revolution around the fire was believed to occur on its own axis during the period of a day and a night. However, the planetary orbits still deviate ...
Quiz # 1 - Oglethorpe University
... c. the Sun moved among the planets, and pulled them out of their circular orbits d. the planets moved on a small circle whose center in turn circled a point near the Earth e. you can't fool me, Ptolemy's system did not include ANY explanation of retrograde motion We now know that the orbit of a stab ...
... c. the Sun moved among the planets, and pulled them out of their circular orbits d. the planets moved on a small circle whose center in turn circled a point near the Earth e. you can't fool me, Ptolemy's system did not include ANY explanation of retrograde motion We now know that the orbit of a stab ...
8th Grade Midterm Test Review
... 24. Why is a year on Mars longer than a year on Earth? • Mars is farther from the Sun than Earth is. ...
... 24. Why is a year on Mars longer than a year on Earth? • Mars is farther from the Sun than Earth is. ...
Slide 1
... 1. Ancient view: Earth is the center of the solar system. This is called the geocentric model. The Sun and other planets revolve around Earth in circles. Sun ...
... 1. Ancient view: Earth is the center of the solar system. This is called the geocentric model. The Sun and other planets revolve around Earth in circles. Sun ...
Unit 2. The planets in the Solar System The Solar System: Consists
... Consists of a central star, the Sun, and several other bodies bound by gravity that move around the Sun. The bodies include planets, dwarf planets, satellites and another small bodies. Among the planets, we can distinguish between the inner and the outer planets: ...
... Consists of a central star, the Sun, and several other bodies bound by gravity that move around the Sun. The bodies include planets, dwarf planets, satellites and another small bodies. Among the planets, we can distinguish between the inner and the outer planets: ...
Chapter 10
... Sun, Moon and stars Using a compass and an astrolabe, they were able to describe the position of any celestial body in relation to the direction North as well as in relation to the ...
... Sun, Moon and stars Using a compass and an astrolabe, they were able to describe the position of any celestial body in relation to the direction North as well as in relation to the ...
Document
... • Argued that the moon must be spherical -he understood the phases of the moon. • Argued the world was spherical for several reasons. – Traveling south brought new constellations into view. – He understood eclipses, and the shadow of the earth on the moon always had a curved edge. – Elephants! ...
... • Argued that the moon must be spherical -he understood the phases of the moon. • Argued the world was spherical for several reasons. – Traveling south brought new constellations into view. – He understood eclipses, and the shadow of the earth on the moon always had a curved edge. – Elephants! ...
overview - Butlins
... space could lead to something that changes life on Earth. For example, if scientists can understand what happens outside of Earth’s atmosphere in the stars and galaxies, they might be able to stop global warming or they might be able to harness a new form of energy! It’s impossible to have a full un ...
... space could lead to something that changes life on Earth. For example, if scientists can understand what happens outside of Earth’s atmosphere in the stars and galaxies, they might be able to stop global warming or they might be able to harness a new form of energy! It’s impossible to have a full un ...
Not a limitation
... What’s next? • Galaxies don’t seem to be slowing down (so Big Crunch is doubtful, or we’re still in a period of expansion) • Open universe: idea that not enough matter to keep it all together, and things keep expanding (like molecules from open jar) • Closed universe: idea that enough mass to pull ...
... What’s next? • Galaxies don’t seem to be slowing down (so Big Crunch is doubtful, or we’re still in a period of expansion) • Open universe: idea that not enough matter to keep it all together, and things keep expanding (like molecules from open jar) • Closed universe: idea that enough mass to pull ...
Conjunctions an Oppositions
... Planets without a telescope look just like stars Except, they move relative to the stars ...
... Planets without a telescope look just like stars Except, they move relative to the stars ...
Conjunctions an Oppositions
... Planets without a telescope look just like stars Except, they move relative to the stars ...
... Planets without a telescope look just like stars Except, they move relative to the stars ...
Kiwi and Tinker Crate_February
... 1st-ESS1.A- The Universe and its Stars- Patterns of the motion of the sun, moon, stars in the sky can be observed, described, and predicted. 5th- ESS1.A- The Universe and its Stars- The sun is a star that appears larger and brighter than other stars because it is closer. Stars range greatly in their ...
... 1st-ESS1.A- The Universe and its Stars- Patterns of the motion of the sun, moon, stars in the sky can be observed, described, and predicted. 5th- ESS1.A- The Universe and its Stars- The sun is a star that appears larger and brighter than other stars because it is closer. Stars range greatly in their ...
Topic 3: Astronomy
... Earth in the Universe rotation: the turning of an object on its axis revolution: the movement of a body in orbit around an object Models of the Universe Geocentric (“Earth-centered”) models proposed by Aristotle, Ptolemy - the Earth is located at the center of the universe and does not move - the ...
... Earth in the Universe rotation: the turning of an object on its axis revolution: the movement of a body in orbit around an object Models of the Universe Geocentric (“Earth-centered”) models proposed by Aristotle, Ptolemy - the Earth is located at the center of the universe and does not move - the ...
Copernican heliocentrism
Copernican heliocentrism is the name given to the astronomical model developed by Nicolaus Copernicus and published in 1543. It positioned the Sun near the center of the Universe, motionless, with Earth and the other planets rotating around it in circular paths modified by epicycles and at uniform speeds. The Copernican model departed from the Ptolemaic system that prevailed in Western culture for centuries, placing Earth at the center of the Universe, and is often regarded as the launching point to modern astronomy and the Scientific Revolution.Copernicus was aware that the ancient Greek Aristarchus had already proposed a heliocentric theory, and cited him as a proponent of it in a reference that was deleted before publication, but there is no evidence that Copernicus had knowledge of, or access to, the specific details of Aristarchus' theory. Although he had circulated an outline of his own heliocentric theory to colleagues sometime before 1514, he did not decide to publish it until he was urged to do so late in his life by his pupil Rheticus. Copernicus's challenge was to present a practical alternative to the Ptolemaic model by more elegantly and accurately determining the length of a solar year while preserving the metaphysical implications of a mathematically ordered cosmos. Thus his heliocentric model retained several of the Ptolemaic elements causing the inaccuracies, such as the planets' circular orbits, epicycles, and uniform speeds, while at the same time re-introducing such innovations as,Earth is one of several planets revolving around a stationary Sun in a determined orderEarth has three motions: daily rotation, annual revolution, and annual tilting of its axisRetrograde motion of the planets is explained by Earth's motionDistance from Earth to the Sun is small compared to the distance to the stars.↑ 1.0 1.1 ↑