1_Introduction
... Celestial sphere surrounding spherical Earth. Stars attached to celestial sphere, which rotates. Earth stationary at center. ...
... Celestial sphere surrounding spherical Earth. Stars attached to celestial sphere, which rotates. Earth stationary at center. ...
lung volumes and capacities
... An imaginary line around which the Earth spins (rotates.) Rocks that orbit mostly between Mars and Jupiter. Objects in space made of frozen gases, rock pieces, and dust. They orbit the Sun in long, narrow orbits CONSTELLATION A group of stars that forms a pattern Large system of gases, dust, and man ...
... An imaginary line around which the Earth spins (rotates.) Rocks that orbit mostly between Mars and Jupiter. Objects in space made of frozen gases, rock pieces, and dust. They orbit the Sun in long, narrow orbits CONSTELLATION A group of stars that forms a pattern Large system of gases, dust, and man ...
Astronomy PPT
... Ancient Greeks • Aristarchus (312-230 B.C.) was the first Greek to profess a Sun-centered, or heliocentric, universe • Planets exhibit an apparent westward drift • Called retrograde motion • Occurs as Earth, with its faster orbital speed, overtakes another planet ...
... Ancient Greeks • Aristarchus (312-230 B.C.) was the first Greek to profess a Sun-centered, or heliocentric, universe • Planets exhibit an apparent westward drift • Called retrograde motion • Occurs as Earth, with its faster orbital speed, overtakes another planet ...
Volcanoes and Igneous Activity Earth - Chapter 4
... Ancient Greeks • Aristarchus (312-230 B.C.) was the first Greek to profess a Sun-centered, or heliocentric, universe • Planets exhibit an apparent westward drift • Called retrograde motion • Occurs as Earth, with its faster orbital speed, overtakes another planet ...
... Ancient Greeks • Aristarchus (312-230 B.C.) was the first Greek to profess a Sun-centered, or heliocentric, universe • Planets exhibit an apparent westward drift • Called retrograde motion • Occurs as Earth, with its faster orbital speed, overtakes another planet ...
Astronomy Unit Notes - sciencepowerpoint.com
... Galaxy – Large group of stars, gas, and dust that constitute the universe. By a large group, we mean hundreds of billions. The Big Bang Theory - The cosmic explosion that is hypothesized to have marked the origin of the universe. Dark Matter – A hypothetical form of matter that is believed to make u ...
... Galaxy – Large group of stars, gas, and dust that constitute the universe. By a large group, we mean hundreds of billions. The Big Bang Theory - The cosmic explosion that is hypothesized to have marked the origin of the universe. Dark Matter – A hypothetical form of matter that is believed to make u ...
Seasonal Motion
... • The stars are “fixed” to the rotating sky globe They move from East to West and also from near to the horizon to higher up in the sky ...
... • The stars are “fixed” to the rotating sky globe They move from East to West and also from near to the horizon to higher up in the sky ...
astronomy notes2013
... 1900 - The astronomer and mathematician Bessel finally measured the distance to the stars by parallax. The nearest star (other than the Sun) turned out to be about 25 million, million miles away! (By contrast the Sun is a mere 93 million miles away from the Earth.) 1905 - Albert Einstein publishes t ...
... 1900 - The astronomer and mathematician Bessel finally measured the distance to the stars by parallax. The nearest star (other than the Sun) turned out to be about 25 million, million miles away! (By contrast the Sun is a mere 93 million miles away from the Earth.) 1905 - Albert Einstein publishes t ...
The Sky and the Motions of the Earth
... • Neither is tilted toward the Sun vernal and autumnal equinox • Seasons not caused by earth changing its distance from the Sun ...
... • Neither is tilted toward the Sun vernal and autumnal equinox • Seasons not caused by earth changing its distance from the Sun ...
The Sun
... Relative Sizes: Asteroids are the largest objects, but comets and asteroids are often similar in size. Meteoroids are much smaller than either comets or asteroids. ...
... Relative Sizes: Asteroids are the largest objects, but comets and asteroids are often similar in size. Meteoroids are much smaller than either comets or asteroids. ...
Greek Astronomy - Galileo and Einstein
... Crystal Spheres: Plato, Eudoxus, Aristotle Plato, with his belief that the world was constructed with geometric simplicity and elegance, felt certain that the sun, moon and planets, being made of aither, would have a natural circular motion, since that is the simplest uniform motion that repeats its ...
... Crystal Spheres: Plato, Eudoxus, Aristotle Plato, with his belief that the world was constructed with geometric simplicity and elegance, felt certain that the sun, moon and planets, being made of aither, would have a natural circular motion, since that is the simplest uniform motion that repeats its ...
Third Nine Weeks Review – Sky Patterns
... When a hemisphere is tilted toward the sun, that hemisphere is having summer. If it is tilted away from the sun, it is having winter. The two season that are most alike are fall and spring because the tilt is not going directly toward or away. The Northern and Southern Hemispheres have opposite ...
... When a hemisphere is tilted toward the sun, that hemisphere is having summer. If it is tilted away from the sun, it is having winter. The two season that are most alike are fall and spring because the tilt is not going directly toward or away. The Northern and Southern Hemispheres have opposite ...
lecture2
... Planets – for example Mars – usually move against the stars in an easterly direction, but about once per year, reverse and move retrograde in westerly direction for a while before reverting to standard easterly motion. Also Mercury and Venus are never found far from the Sun – with circular orbits ar ...
... Planets – for example Mars – usually move against the stars in an easterly direction, but about once per year, reverse and move retrograde in westerly direction for a while before reverting to standard easterly motion. Also Mercury and Venus are never found far from the Sun – with circular orbits ar ...
File - Mrs. Malm`s 5th Grade
... 2. Eight planets 3. One asteroid belt, located between Mars and Jupiter 4. Dwarf planets, like Pluto (considered to be a planet for about 75 years!) 5. Earth has only one moon but other planets have MANY. C. Important Planet Facts 1. Mercury- the closest planet to the sun, revolves around the Sun th ...
... 2. Eight planets 3. One asteroid belt, located between Mars and Jupiter 4. Dwarf planets, like Pluto (considered to be a planet for about 75 years!) 5. Earth has only one moon but other planets have MANY. C. Important Planet Facts 1. Mercury- the closest planet to the sun, revolves around the Sun th ...
Mod three revision
... • mercury has been known since least the time of the Sumerians (3rd million bc) • the greeks gave mercury two • names,hermes as an evening star,Apollo for its morning star ...
... • mercury has been known since least the time of the Sumerians (3rd million bc) • the greeks gave mercury two • names,hermes as an evening star,Apollo for its morning star ...
Models of the sky—11 Sept Changes in the Sky
... The sun sets south of west in winter. Winter days are short. Stars move east to west over a night. The constellations change over the months. The sun (and moon and stars) rises & sets. The sun is higher in the sky in summer than winter. • Planets move with respect to the stars. • Comets appear irreg ...
... The sun sets south of west in winter. Winter days are short. Stars move east to west over a night. The constellations change over the months. The sun (and moon and stars) rises & sets. The sun is higher in the sky in summer than winter. • Planets move with respect to the stars. • Comets appear irreg ...
Name Class Date Our Solar System The solar system consists of our
... distances within our solar system. Gravity is the force that keeps planets in orbit around the Sun and the Moon in orbit around Earth. Every object exerts gravitational force on every other object. Gravitational force depends on how much mass the objects have and on how far apart they are. Gravity i ...
... distances within our solar system. Gravity is the force that keeps planets in orbit around the Sun and the Moon in orbit around Earth. Every object exerts gravitational force on every other object. Gravitational force depends on how much mass the objects have and on how far apart they are. Gravity i ...
Solar System
... Earth • Earth has one moon. • Earth is the only planet with liquid water. • Earth is the only planet with living organisms. ...
... Earth • Earth has one moon. • Earth is the only planet with liquid water. • Earth is the only planet with living organisms. ...
SE 1.0 - Edquest
... Arabian Astronomers used an instrument, called an astrolabe to … A. measure the angle between the Moon and any given star B. identify details in the far reaches of the night sky C. make accurate charts of star positions predict the movement of stars D. measure a star’s height above the horizon ...
... Arabian Astronomers used an instrument, called an astrolabe to … A. measure the angle between the Moon and any given star B. identify details in the far reaches of the night sky C. make accurate charts of star positions predict the movement of stars D. measure a star’s height above the horizon ...
Chapter 7 Solar System study guide
... Sun is a star – it is the largest object in the S.S. 1,000,000 Earths Photosphere Chromosphere Corona (inside outside) Sunspots are cooler spots on the sun – they tend to look black. Sunspots come and go in cycles of about 11 years. Solar flares – explosion/ribbon of fire Solar prominences – rib ...
... Sun is a star – it is the largest object in the S.S. 1,000,000 Earths Photosphere Chromosphere Corona (inside outside) Sunspots are cooler spots on the sun – they tend to look black. Sunspots come and go in cycles of about 11 years. Solar flares – explosion/ribbon of fire Solar prominences – rib ...
SMART Notebook
... Venus is the second planet from the sun. It is the hottest planet in which trap heat from the Sun. Its thick atmosphere is mostly carbon dioxide. Venus is slightly smaller than the Earth. It has no moons. Venus is known as the "morning star" since it is visible and quite bright at dawn or dusk(this ...
... Venus is the second planet from the sun. It is the hottest planet in which trap heat from the Sun. Its thick atmosphere is mostly carbon dioxide. Venus is slightly smaller than the Earth. It has no moons. Venus is known as the "morning star" since it is visible and quite bright at dawn or dusk(this ...
Ch. 22 Honors Study Guide Name 1. How did Eratosthenes
... 13. What change did Kepler make to the Copernicus’ Heliocentric model to fix it? 14. How does the fact that the Sun is at one focus of the elliptical orbits of the planets affect the distance that a planet is from the Sun? Draw a diagram ...
... 13. What change did Kepler make to the Copernicus’ Heliocentric model to fix it? 14. How does the fact that the Sun is at one focus of the elliptical orbits of the planets affect the distance that a planet is from the Sun? Draw a diagram ...
Notes
... A. according to this theory the solar system is about _________________ years old. B. See transparency A II. During this process small celestial bodies also formed A. _________- long tails and icy centers 1. orbits around Sun usually very long B. ___________- made from different elements C. ________ ...
... A. according to this theory the solar system is about _________________ years old. B. See transparency A II. During this process small celestial bodies also formed A. _________- long tails and icy centers 1. orbits around Sun usually very long B. ___________- made from different elements C. ________ ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.