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Concepts and Skills
Concepts and Skills

... than did the mass of the planet. Newton generalized from his thinking about planets to formulate his law of universal gravitation. The law says that every body in the universe attracts every other body in the universe with a force that varies directly with the product of the masses and inversely wit ...
The REAL OCCULT - Montgomery College
The REAL OCCULT - Montgomery College

... PRECESSION CYCLE: originally motion of the first day of a season around the ecliptic, now cycle of the rotation axis (day and night axis) about the year axis (this angle is around 23 ½ degrees now and takes around 26,000 years) GALACTIC YEAR: revolution of solar system about the Galactic center in a ...
Powerpoint 2003
Powerpoint 2003

... Galileo discovered that the higher an object is dropped, the greater its speed when it reaches the ground All falling objects near the surface of the Earth have the same acceleration (9.8 m/s2) The acceleration of gravity on the surface of other solar-system bodies depends on their mass and radius • ...
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File

... expanding in his observations of light from other galaxies in relation to Earth. • Hubble’s Law —the farther something was away from Earth, the faster it seemed to be moving away. • The Theory —about 15 billion years ago, the universe was compressed into a small space then exploded in a sudden burst ...
HISTORY OF ASTRONOMY Largely on the basis of
HISTORY OF ASTRONOMY Largely on the basis of

... assumed to move with uniform velocity around a small circle (the epicycle) that moved around a larger circle (the deferent), with a uniform velocity appropriate for each particular planet. HIPPARCHUS, c.190-120 BC, the most outstanding astronomer of ancient times, made refinements to the theory of t ...
The Copernican Revolution
The Copernican Revolution

... people had carefully read the book. The margins of many books are full of notes, where the readers had followed along with Copernicus as he presented his mathematical arguments. Gingerich identified copies that had belonged to Galileo and to Kepler. ...
Document
Document

... (1A) When this happens, Mars appears to move backwards in the sky as observed on the Earth, as shown in the figure above. ...
Circular Motion
Circular Motion

... planet to those of other planets  The comparison being made is the ratio of the squares ...
The Ultimate Tool of Astronomy: Telescopes
The Ultimate Tool of Astronomy: Telescopes

... wavelengths. The same emission lines for Star B are observed to be at X-ray wavelengths. From these observations you conclude that: 1) both stars are moving away from the Earth 2) Star A is moving towards the Earth faster than Star B 3) Star B is moving towards the Earth faster than Star A 4) Star B ...
Jeopardy Sun & Earth
Jeopardy Sun & Earth

... Northern Hemisphere, it is Winter in the Southern Hemisphere. ...
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ppt

... “By reason of the deviation of the Sun from the center of gravity, the centripetal force does not always tend to that immobile center, and hence the planets neither move exactly in ellipses nor revolve twice in the same orbit. There are as many orbits of a planet as it has revolutions, as in the mot ...
PH212 Chapter 13 Solutions
PH212 Chapter 13 Solutions

... the radius of the moon’s orbit around the earth is given in Appendix F as moon is much closer to the earth than it is to the sun, so take the distance sun to be ...
Geocentric Model of the Universe
Geocentric Model of the Universe

... Midnight Sunset ...
Astronomy
Astronomy

... circle, which in turn had its center move on a much larger circle centered on the Earth The small circles were called epicycles and were incorporated so as to explain retrograde motion ...
4-eclipses-and-tides
4-eclipses-and-tides

... 26. Base your answer to the following question on the passage below. A Newly Discovered Planet Scientists studying a Sun-like star named Ogle-Tr-3 discovered a planet that is, on the average, 3.5 million kilometers away from the star’s surface. The planet was discovered as a result of observing a c ...
Eratosthenes (250 B.C) Ptolemy`s Geocentric Model
Eratosthenes (250 B.C) Ptolemy`s Geocentric Model

... http://www.coam.org.uk/Events/event2006/Dark%20Ages.jpg ...
4-eclipses-and-tides
4-eclipses-and-tides

... 26. Base your answer to the following question on the passage below. A Newly Discovered Planet Scientists studying a Sun-like star named Ogle-Tr-3 discovered a planet that is, on the average, 3.5 million kilometers away from the star’s surface. The planet was discovered as a result of observing a c ...
2015 Final Semester Exam Review
2015 Final Semester Exam Review

... 16. An instrument used to view different colors of light produced by each type of light bulb is called a (n) _________________________________ 17. What is the difference between a nebula and a star? _________________________________________________ ___________________________________________________ ...
Slide 1
Slide 1

... •Square of any planet's orbital period (sidereal) is proportional to cube of its mean distance (semi-major axis) from Sun •Mathematical statement: T = kR3/2 , where T = sidereal period, and R = semimajor axis •Example - If a is measured in astronomical units (AU = semi-major axis of Earth's orbit) a ...
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PDF version (two pages, including the full text)

... is Cygnus the Swan, also known as the Northern Cross. At the NE end (top) of the Cross is Deneb, the tail of the Swan. Deneb is much more distant than most of the stars we see with the unaided eye, and its true brightness has been estimated at 160 000 suns. To the right (W) of Deneb is another brigh ...
Ch. 16 Notes
Ch. 16 Notes

... The asteroid belt is found between the orbits of Mars and Jupiter. It holds most of the asteroids found orbiting the sun. It is believed they might have been a small planet that was prevented from forming by the gravity of Jupiter. ...
Located on roof of the Science Building at the UW-Stevens
Located on roof of the Science Building at the UW-Stevens

... length. Below is an illustration of the approximate angular size of parts of your hand held at arm's length. You can test to see how well it does by comparing it to some known sizes. The diameter of the Moon in the sky is 0.5°, so it should be about half the width of your index finger at arm's lengt ...
Motion of stars, planets
Motion of stars, planets

... • The Sun, stars, and planets on their spheres revolve around the earth: explains daily movement • To account for unusual planetary motion epicycles were introduced • Fit the Greek model of heavenly perfection – spheres are the perfect shape, circular the perfect motion ...
Lecture 3a
Lecture 3a

... •  Very strong proponent of the scientific method – use of observations to test theories. •  Early work was on motion, and practical elements like hydrostatics •  In 1609 was the first one to use a telescope for astronomy => became the most famous scientist/celebrity in Europe •  Last 30 years of hi ...
Gravitation and Orbital Motion
Gravitation and Orbital Motion

... mstar  G  9.93x1031 kg  49.9M sun ...
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Lunar theory

Lunar theory attempts to account for the motions of the Moon. There are many irregularities (or perturbations) in the Moon's motion, and many attempts have been made to account for them. After centuries of being problematic, lunar motion is now modeled to a very high degree of accuracy (see section Modern developments).Lunar theory includes: the background of general theory; including mathematical techniques used to analyze the Moon's motion and to generate formulae and algorithms for predicting its movements; and also quantitative formulae, algorithms, and geometrical diagrams that may be used to compute the Moon's position for a given time; often by the help of tables based on the algorithms.Lunar theory has a history of over 2000 years of investigation. Its more modern developments have been used over the last three centuries for fundamental scientific and technological purposes, and are still being used in that way.
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