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Astronomy Ancient Philosophies
Aristotle ( ) B.C. Greek philosopher Believed the Earth was the center of the universe Earth was surrounded by water, air, and fire
Aristotle He thought that the moon, sun, five planets, and the stars all revolved around the Earth Geocentric model
Aristarchus (3rd Century B.C)Sun is the center of the universe Heliocentric model First to measure the distance to the sun and moon
Aristarchus REVOLUTION is the cycle in which a planet orbits the sun (one year) ROTATION is the cycle of a planet spinning on its axis; day to night (one day)
What is an axis? Imaginary line on which an object rotates Earth’s axis goes through its center from the North to the South Pole
Questions What is the major difference between the universe models of Aristotle and Aristarchus? How is rotation different from revolution?
Ptolemy (2nd century A.D)Agreed with ARISTOTLE’S geocentric model Retrograde motion is the idea that a planet moves back and forth in a looping motion; “Mars” (p.434)
Copernicus ( ) Heliocentric model Expanded the ideas of Aristarchus Identified the positions of the planets
Galileo ( ) Spent most of his life trying to prove the theories of Copernicus First to effectively use the telescope page 439
Roman Catholic PhilosophyEarth and humans are the center of all things
Questions Why would the Roman Catholics care whether the Earth was the center of the universe? What is retrograde motion?
Questions What is the difference between heliocentric and geocentric? What was Ptolemy’s theory? Why was Galileo important?
Solar System Vocab. The path that an object such as a planet makes as it revolves around a second object.
Earth, Moon, & Sun SOL 4.7. an object that moves around another object in space.
Arrangement & Movement of Objects in Our Solar System …and who figured it all out?
“Intro to Astronomy” §Terms You Need To Know! 1. Astronomy- The study of everything outside of the earth’s atmosphere. 2. Celestial Sphere - Imaginary.
Chapter 1 Section 1. Imagine: 5000 years ago. Imagine: 5000 years ago. There are no clocks—no modern calendars. There are no clocks—no modern calendars.
Identify the units of a calendar. How do scientists study space?
Models of the Solar System Chapter 27 Section 2. Two Basic Models of the Universe 1.Geocentric – The Earth is located in the center and all other celestial.
History of Astronomy. Early Astronomy Astronomy Is science that the universe Greeks 600 B.C. – A.D. 150 Measured distances to the Sun and Moon.
Earth’s Rotation Rotation means “to spin”. Earth rotates on its axis- an imaginary line running through the center of earth from north to south pole. Earth.
TOPIC #1: Chapter 22 Origin of Modern Astronomy. Section 1: Early Astronomy Astronomy is the science that studies the universe. The “Golden Age” of early.
Early Models of the Universe. Pythagoreans (500 B.C.) Believed the stars, planets, sun, and moon were attached to crystalline spheres which rotated around.
The Scientific Revolution. What is a revolution? It is a major change.
A New View of the Universe Topic. Essential Question How did the view of the universe change during the Scientific Revolution? Essential Question.
Ch.20 The Solar System Section 1: Observing the Solar System.
Early Astronomy 4/21/ b pgs IN: Draw a diagram showing rotation and revolution. Open a book to pg. 486.
The Trial of Galileo. Trial of Galileo On trial for teaching the views of Copernicus On trial for teaching the views of Copernicus Said the Sun rather.
Sun, Moon, Earth, How do they work together to help life survive? Our Solar System.
CELESTIAL MOTION Outcome #3 – Sun & Solar System.
“Geocentric vs. Heliocentric Theory” Claims and Evidence from the Ancient Astronomers Cornell Notes pg. 61.
2.1 History of Astronomy. What is Astronomy? The branch of science that deals with celestial objects, space, and the physical universe as a whole.
Chapter 3 – The Solar System Lesson 1. In a geocentric system, the planets and stars are thought to revolve around a stationary Earth. Most early.
Rotation and Revolution. Solar System A group of objects in space that move around a central star.
Major Changes in Astronomy Within last 400 years: -- Earth is not the center -- Universe is immense Within last 200 years: -- Appreciate the age of the.
Astronomy Questions Question 1 Geocentric Model – Earth is the center of the universe with all space bodies revolving around the Earth. Geocentric.
Directions: Read carefully through ALL of the slides presented (total of 18; on a 15 second timer per slide); TAKE BRIEF NOTES on each of the 13 Astronomers.
The story of the Solar System – how have our ideas changed.
Think About It: For 1,700 years what did we believe about the Earth and the Sun and their motions? Why did we believe that? For 1,700 years what did we.
Physics 202: Introduction to Astronomy – Lecture 3 Carsten Denker Physics Department Center for Solar–Terrestrial Research.
Earth and spaces. Earth and spaces words cards Earth sun Moon Planets Star Solar system Mercury Venus Mars Jupiter Saturn.
Astronomical History n Ptolemy expresses geocentric model 127AD n Copernicus offers heliocentric model 1530 AD n Tycho Brahe takes precision.
Astronomy foldable. Revolution The movement of a planet around the sun One revolution around the sun equals one year Planets orbit/revolve around the.
Our Solar System. Models of the Solar System Objectives: Compare the models of the universe developed by Ptolemy & Copernicus Summarize Kepler’s 3.
Models of the Solar System From Earth, it appears as though the stars, moon and sun are moving around us in the sky as we stay motionless. Ancient observers.
A Brief History of Astronomy 350 bce. - mid 1600’s ce.
A Brief History of Astronomy NOTES GEO MEANS EARTH.
RAP 1.1._____wind belt the United States is in 2.2._____rotating column of air that forms over warm ocean water 3.3._____ type of pressure that warm air.
SPACE SCIENCE UNIT 2 LESSON 1 Historical Modes of the Solar System.
From Aristotle to Newton The history of the Solar System (and the universe to some extent) from ancient Greek times through to the beginnings of modern.
Background of Early Astronomers Looking Back. 1. Ptolemy ( AD) He thought He thought A. Earth was the center of the solar system (Geocentric view)
Greek Believed the universe is spherical and finite Planets center around the Earth His theory that the sun and planets revolve and are centered.
Part 2: Motions of the Planets 1. Planets While stars move through the sky they stay in the same place in relation to each other. Ancient observers.
People once thought that earth was Today we know its shape as a.
Warm Up What do you already know about OUR solar system? Write 10 facts YOU know. Did you know? By about 3500 BC (and maybe long before that), people thought.
Intro to Astronomy Grade 9 Science. Astronomy Intro Grade 9 Science The universe is everything that exists, including all matter and energy everywhere.
Astronomy Mr. Fox 8 th Grade Science. Part I: Space like thinking Astronomy – the study of the moon, stars, and other objects in space Astrology – predicting.
Web 1 Ancient Theories of Solar System 1.heliocentric theory 2. geocentric theory 3. Aristotle 4. Aristarchus 5. Ptolemy 6. Copernicus 7. Johannes Kepler.
The Solar System December 13, Objectives TODAY I WILL BE ABLE TO: – Differentiate between the _________and _________________of the earth. – Explain.
Outer Space Chapters 25 and Solar System Made up of: Sun (a.k.a. star) Planets Moons (yes plural) Other small objects.
Definition - Earth is at the center of the solar system being orbited by the Sun and other planets (sketch a picture of a geocentric solar system)
The Evolution of Our Understanding of the Solar System By Brian Fontaine.
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