Astronomy Unit Study Guide
... 11. Place the following cosmic objects in order from smallest to largest: galaxy, star, planet, constellation, moon, universe, asteroid, solar system 12. In what part of the Milky Way Galaxy is our solar system located? ...
... 11. Place the following cosmic objects in order from smallest to largest: galaxy, star, planet, constellation, moon, universe, asteroid, solar system 12. In what part of the Milky Way Galaxy is our solar system located? ...
Unit 3: The Solar System Historical Models of the Solar System
... Gravity and the Solar System: Lesson 2 Gravity and the forces that change it ______________: a force of ___________________ between 2 objects due to their ___________ and the ___________ between them. Gravity is the ______________ force in ___________, yet it accounts for the ______________ of plan ...
... Gravity and the Solar System: Lesson 2 Gravity and the forces that change it ______________: a force of ___________________ between 2 objects due to their ___________ and the ___________ between them. Gravity is the ______________ force in ___________, yet it accounts for the ______________ of plan ...
The Heliocentric Model of the Solar System
... The Scale of the Universe • Earth is average—we don’t occupy any special place in the universe • Just one of eight planets circling around the Sun who, in turn , is located in one arm of our galaxy and rotates around the galactic center • Our Sun is one (the closest to us) of about 200 Billion (2 ...
... The Scale of the Universe • Earth is average—we don’t occupy any special place in the universe • Just one of eight planets circling around the Sun who, in turn , is located in one arm of our galaxy and rotates around the galactic center • Our Sun is one (the closest to us) of about 200 Billion (2 ...
Geocentric System
... The Moon is Falling! Newton’s insight: same force causes apple to fall and keeps Moon in orbit; decreases as square of distance, as does ...
... The Moon is Falling! Newton’s insight: same force causes apple to fall and keeps Moon in orbit; decreases as square of distance, as does ...
the Moon? The Moon has no wind or water to erode the craters
... different amounts of time. Mars is closer to the Sun, travels faster, and in a smaller orbit. Saturn moves more slowly and has a longer orbit. 11. How does Earth rotation on its axis help keep the planet at proper temperature for life? The Earth rotates quickly ...
... different amounts of time. Mars is closer to the Sun, travels faster, and in a smaller orbit. Saturn moves more slowly and has a longer orbit. 11. How does Earth rotation on its axis help keep the planet at proper temperature for life? The Earth rotates quickly ...
1 PS 3.9 Grade 9 Review
... 1. Define the term non-luminous and give an example of a non-luminous object in our solar system. ...
... 1. Define the term non-luminous and give an example of a non-luminous object in our solar system. ...
Fun Facts: Sunshine
... Without the sun, there would be no heat or light on earth. This means there would be no life either. It takes 8 minutes for light to travel from the sun to the earth. ...
... Without the sun, there would be no heat or light on earth. This means there would be no life either. It takes 8 minutes for light to travel from the sun to the earth. ...
intro.phys.psu.edu
... Johannes Kepler embraced Copernicanism after attending Mästlin's lectures on the superiority of Copernicus's cosmology. After secured control of Tycho Brahe’s incomparable data set and spent the next eight years devising various geometrical schemes to account for the observations of Mars. Kepler fin ...
... Johannes Kepler embraced Copernicanism after attending Mästlin's lectures on the superiority of Copernicus's cosmology. After secured control of Tycho Brahe’s incomparable data set and spent the next eight years devising various geometrical schemes to account for the observations of Mars. Kepler fin ...
CHAPTER 4 FINAL REVIEW QUESTIONS MULTIPLE CHOICE
... is the book that first described the heliocentric solar system. b. ...
... is the book that first described the heliocentric solar system. b. ...
Chapter04
... before Copernicus in order to show that his ideas developed from those of his predecessors rather than appearing from nowhere to confront a previously unquestioned Ptolemaic model. 3. Copernicus Nothing seems to work like a mechanical model of the solar system (an orrery) to convince the students th ...
... before Copernicus in order to show that his ideas developed from those of his predecessors rather than appearing from nowhere to confront a previously unquestioned Ptolemaic model. 3. Copernicus Nothing seems to work like a mechanical model of the solar system (an orrery) to convince the students th ...
Document
... from a star is shifted towards the blue end of the spectrum? The star is moving towards the observer. ...
... from a star is shifted towards the blue end of the spectrum? The star is moving towards the observer. ...
Lecture 3 Ptolemy to Galileo
... Greek scientist Aristotle showed that the Earth is spherical. Aristotle supported his statement that the Earth is round with ...
... Greek scientist Aristotle showed that the Earth is spherical. Aristotle supported his statement that the Earth is round with ...
History_p1
... Fall of the Roman Empire to the Renaissance During the Middle Ages the Islamic civilization had flourished in the Arabic countries. They had preserved and translated the Greek writings and adopted the Greek ideals of logic and rational inquiry. Islamic astronomers were careful observers of the sky a ...
... Fall of the Roman Empire to the Renaissance During the Middle Ages the Islamic civilization had flourished in the Arabic countries. They had preserved and translated the Greek writings and adopted the Greek ideals of logic and rational inquiry. Islamic astronomers were careful observers of the sky a ...
What is the difference between geocentric and heliocentric theories?
... • As it turned out, it was very difficult to prove that the planets did not revolve around the Earth without leaving the planet. ...
... • As it turned out, it was very difficult to prove that the planets did not revolve around the Earth without leaving the planet. ...
Lecture 2 - U of L Class Index
... • He measured the circumference of the Earth. • The Sun is at the zenith in the city of Syene at noon on the summer solstice. •But at the same time in Alexandria, it is 7° from the ...
... • He measured the circumference of the Earth. • The Sun is at the zenith in the city of Syene at noon on the summer solstice. •But at the same time in Alexandria, it is 7° from the ...
The Copernican Model (1543)
... The inclination direction slowly changes The Precession Period is about 25,700 years (cf. Hipparchus) ...
... The inclination direction slowly changes The Precession Period is about 25,700 years (cf. Hipparchus) ...
Early Observers (The Beginnings of Astronomy)
... Many buildings were aligned with celestial bodies during certain astronomical events ...
... Many buildings were aligned with celestial bodies during certain astronomical events ...
123mt13a
... The most accurate astronomical clock which is available to the naked eye is The position of the Sun with respect to the stars The phases of the Moon (this is an arbitrary clock) The position of Mars with respect to the Zodiac Constellation The position of Jupiter with respect to the Zodiac Constella ...
... The most accurate astronomical clock which is available to the naked eye is The position of the Sun with respect to the stars The phases of the Moon (this is an arbitrary clock) The position of Mars with respect to the Zodiac Constellation The position of Jupiter with respect to the Zodiac Constella ...
Lecture6
... wandering object (sun, moon, + 5 planets), in addition to the “fixed stars”. Problem: couldn’t explain retrograde motion. Solution (Ptolemy): small circles upon large (offset) circles. ...
... wandering object (sun, moon, + 5 planets), in addition to the “fixed stars”. Problem: couldn’t explain retrograde motion. Solution (Ptolemy): small circles upon large (offset) circles. ...
History of Astronomy
... was no longer at the center • The heliocentric (Sun centered) model placed the Earth out of its central position, yet still maintained many of the observations we see • The beauty in his model was its simplicity over the Ptolemaic – Occam's Razor • The simplest solution is the best ...
... was no longer at the center • The heliocentric (Sun centered) model placed the Earth out of its central position, yet still maintained many of the observations we see • The beauty in his model was its simplicity over the Ptolemaic – Occam's Razor • The simplest solution is the best ...
Chapter 25.1: Models of our Solar System
... 3. Components of the Solar System A.U. (Astronomical Units) = •average distance between Earth & sun (1 AU) ...
... 3. Components of the Solar System A.U. (Astronomical Units) = •average distance between Earth & sun (1 AU) ...
Chapter 25.1: Models of our Solar System
... 3. Components of the Solar System A.U. (Astronomical Units) = •average distance between Earth & sun (1 AU) ...
... 3. Components of the Solar System A.U. (Astronomical Units) = •average distance between Earth & sun (1 AU) ...
Chapter 25.1: Models of our Solar System
... 3. Components of the Solar System A.U. (Astronomical Units) = •average distance between Earth & sun (1 AU) ...
... 3. Components of the Solar System A.U. (Astronomical Units) = •average distance between Earth & sun (1 AU) ...
Powerpoint Presentation (large file)
... • One of Galileo’s most important discoveries with the telescope was that Venus exhibits phases like those of the Moon • Galileo also noticed that the apparent size of Venus as seen through his telescope was related to the planet’s phase • Venus appears small at gibbous phase and largest at crescen ...
... • One of Galileo’s most important discoveries with the telescope was that Venus exhibits phases like those of the Moon • Galileo also noticed that the apparent size of Venus as seen through his telescope was related to the planet’s phase • Venus appears small at gibbous phase and largest at crescen ...
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.