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Make a list of words that come to mind when you hear the word: Astronomy
SunUniverse EarthBig Bang Theory MoonAsteroids PlanetsMeteors StarsConstellations CometsSatellites NASAGravity Black HolesSupernova
History of Astronomy
Essential Question How do astronomers learn what is beyond our atmosphere? Todays Objectives: – Explain geocentric and heliocentric models of solar system – Describe history of Astronomy
Before We Begin… Planets Solar System Solar System Galaxy Galaxies Universe
Early Greek Astronomers Ptolemy Geocentric Model – states that the Earth is the center of everything in universe Planets move in perfect circles around the Earth
Copernicus 1500s Polish astronomer Heliocentric Model – states that the Sun is the center of the universe Planets move in perfect circles around the Sun
Galileo Late 1500s - early 1600s Believed Heliocentric Model Inventor of telescope – Observed moons of Jupiter – Observed phases of Venus
Kepler Late 1500s, German mathematician Planets have elliptical orbits Unable to explain why planets orbits were elliptical
Newton 1600s-1700s Studied Gravity – developed Universal Law of Gravitation Explained why planets orbit in ellipses
Einstein Physicist, early 1900s Theory of Relativity E= mc 2 Energy = (Mass)(Speed of light) 2
History of Astronomy How have ideas about the solar system and our place in it changed over time? How have ideas about the solar system and our place.
Identify the units of a calendar. How do scientists study space?
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.
Early Astronomy 4/21/ b pgs IN: Draw a diagram showing rotation and revolution. Open a book to pg. 486.
A Brief History of Astronomy NOTES GEO MEANS EARTH.
History of Astronomy The guys with their eyes on the skies.
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.
Observing the Solar System: A History Chapter 26.2 P
Sun, Moon, Earth, How do they work together to help life survive? Our Solar System.
Observing the Solar System. Greek Observations Greek astronomers believed Earth to be the center of the universe. This is known as a geocentric system.
ASTRONOMY- THE ORIGINAL SCIENCE Bellwork: Imagine that it is 5,000 years ago. Clocks and modern calendars have not been invented. How would you tell time.
What is the purpose behind Astronomy? Explore the unknown beyond our atmosphere Track planets, satellites (moons), stars, comets Keeping time = Calendar.
SPACE SCIENCE UNIT 2 LESSON 1 Historical Modes of the Solar System.
Early Western people believed that the Earth was the center of the universe. That is called a geocentric system. Ptolemy, a Greek astronomer believed that.
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.
Geocentric vs. Heliocentric A Battle for the Ages.
Famous Astronomers. Ptolemy Thought the Earth was at the center of the universe and that the other planets revolved around it (GEOcentric model) Thought.
Early Models of the Universe. Pythagoreans (500 B.C.) Believed the stars, planets, sun, and moon were attached to crystalline spheres which rotated around.
Models of the Solar System. The observations that you have been making of the Sun, Moon and stars were the same observations made by early scientists.
The Solar System Explorers. Ancient Greeks The ancient greeks noticed that the stars would move across the sky, but would stay in the same position relative.
Starter: Explain what you know about astronomy Connection: If you were present on Earth during a time of zero technology and all you had was your own personal.
Chapter 1 The Copernican Revolution. The planets’ motions Wanderers among the stars Retrograde motion.
THE SOLAR SYSTEM Chapter 24A. Unit Objectives Compare models of the solar system To list and describe the objects in our solar system.
Models of the Universe. Throughout history we have looked at the stars and wondered about the universe.
Introduction to Astronomy. How big, and small, is our universe, and how do scientists measure these vast differences? Scientific Notation—a convenient.
Astronomy- the study of the universe Year- the time required for the Earth to orbit once around the sun Month- a division of the year that is based.
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)
Modelling Celestial Motion. Using Models Designers and engineers use models to help them solve problems without having to construct the real thing. Designers.
Greeks Discovered the planets Planet is the greek word meaning wanderers Called wanerers because they sometimes moved in the opposite direction from the.
Model of the Solar System. Who is This Greek Guy?
Ch 22 Astronomy. Ancient Greeks 22.1 Early Astronomy Astronomy is the science that studies the universe. It includes the observation and interpretation.
Web 1 Ancient Theories of Solar System 1.heliocentric theory 2. geocentric theory 3. Aristotle 4. Aristarchus 5. Ptolemy 6. Copernicus 7. Johannes Kepler.
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.
The Big Bang and Early Astronomers. A SCIENTIFIC THEORY is an explanation of some aspect of the natural world that is acquired through the scientific.
I.Astronomer Ideas A.The Greeks thought Earth was a rotating dome- celestial sphere. B.Geocentric system- Earth at the center of the revolving planets.
What is the difference between geocentric and heliocentric theories?
Chapter 26.2: Observing the Solar System. Early views of the organization of Space were much different than ours.
A New View of the Universe Topic. Essential Question How did the view of the universe change during the Scientific Revolution? Essential Question.
Where it all Began Scientists believe that the universe started from a PRIMEVAL ATOM The Primeval atom was a very hot and very dense mass of energy.
Astronomy is everything in the universe such as planets, stars, moons, sun and asteroids. 2 theories explain the beginning of the Universe. Science.
Cool Dudes of Astronomy! a.k.a A brief history of astronomy.
Space Unit Scientists. Lived in Egypt but was from Greece. Was the most influential astronomer, mathematician and geographer of his time.
Astronomy- The Original Science Imagine that it is 5,000 years ago. Clocks and modern calendars have not been invented. How would you tell time or know.
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.
Developing a Model of the Solar System THE HISTORY OF ASTRONOMY.
Kepler’s Laws of planetary motion Newton’s law of universal gravitation Free fall acceleration on surface of a planet Satellite motion Lecture 13: Universal.
Intro to Astronomy Through the early history of civilization, people made observations about the night sky, sun, and moon. They tried to explain what they.
History of Astronomy Views of the Solar System. How did all of SPACE start? No one knows for sure, but it’s believed that… Between 10 to 20 billion years.
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