Study Guide for Earth/ Space Science Test 1. Rotation – The Earth
... 3. Night – the part of the day in which the Earth is not facing the sun. 4. Day – the part of the day in which the Earth is facing the sun. 5. Seasons – opposite in hemispheres and caused by the tilt toward or away from the sun and the direct angle of sunlight hitting the area. Also caused by revolu ...
... 3. Night – the part of the day in which the Earth is not facing the sun. 4. Day – the part of the day in which the Earth is facing the sun. 5. Seasons – opposite in hemispheres and caused by the tilt toward or away from the sun and the direct angle of sunlight hitting the area. Also caused by revolu ...
Astronomy and Humanism by Ray Thompson A. EARLY
... between the length of the period of these stars and their intrinsic brightness. It is easy to measure the period of a variable star. But if this also tells you the star's intrinsic brightness, by simply comparing the intrinsic brightness with its apparent brightness you can easily calculate its dist ...
... between the length of the period of these stars and their intrinsic brightness. It is easy to measure the period of a variable star. But if this also tells you the star's intrinsic brightness, by simply comparing the intrinsic brightness with its apparent brightness you can easily calculate its dist ...
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. ...
early astronomical history
... – Ptolemy of Alexandria improved the geocentric model by assuming each planet moved on a small 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 – Ptolemy’s model ...
... – Ptolemy of Alexandria improved the geocentric model by assuming each planet moved on a small 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 – Ptolemy’s model ...
Astronomy Lecture 1a
... ___ 45. A highly reflective body has ? albedo. A.less B.more C.there is no correlation between albedo and reflectivity ___ 46. Some planets have angular sizes almost as large as a ? of arc. A.degree B.minute C.second ___ 47. ? was the first astronomer to fully develop the heliocentric theory. A.Gali ...
... ___ 45. A highly reflective body has ? albedo. A.less B.more C.there is no correlation between albedo and reflectivity ___ 46. Some planets have angular sizes almost as large as a ? of arc. A.degree B.minute C.second ___ 47. ? was the first astronomer to fully develop the heliocentric theory. A.Gali ...
19.3 Notes
... the planets orbited the ____________ in perfect circles. In 1605, Johannes Kepler improved the model by proposing that the orbits around the sun are _______________, or ovals, rather than circles. ...
... the planets orbited the ____________ in perfect circles. In 1605, Johannes Kepler improved the model by proposing that the orbits around the sun are _______________, or ovals, rather than circles. ...
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 ...
Models of the Solar System
... • This apparent change in the position of an object when viewed from different angles or locations on Earth is known as parallax. • What Aristotle did not take into account is the fact that stars are very far away. At such great distance parallax cannot be observed without a telescope. ...
... • This apparent change in the position of an object when viewed from different angles or locations on Earth is known as parallax. • What Aristotle did not take into account is the fact that stars are very far away. At such great distance parallax cannot be observed without a telescope. ...
Which of the following represent the best explanation we currently
... ! A theory consists of a set of basic principles. ! These principles are often widely accepted. ...
... ! A theory consists of a set of basic principles. ! These principles are often widely accepted. ...
Lecture 5 - Orbits, Sizes, Precession
... Orbits Parallax Angular size and physical size Precession ...
... Orbits Parallax Angular size and physical size Precession ...
Lecture 14+15 - University of Texas Astronomy Home Page
... - ‘De Revolutionibus Orbium Celelstium’ = “Concerning the Revolutions of the Heavenly Spheres” published in 1543 on the day he died. ...
... - ‘De Revolutionibus Orbium Celelstium’ = “Concerning the Revolutions of the Heavenly Spheres” published in 1543 on the day he died. ...
Astronomy Miscellaneous Items Test
... Answer the following questions. Answer in complete sentences, but answer succinctly. Remember: You must pass with 80% to receive credit for this section. This test is worth 3 points 1. What calendar do we use now, on a day-to-day basis? 2. The keeping of time accurately is very important to astronom ...
... Answer the following questions. Answer in complete sentences, but answer succinctly. Remember: You must pass with 80% to receive credit for this section. This test is worth 3 points 1. What calendar do we use now, on a day-to-day basis? 2. The keeping of time accurately is very important to astronom ...
Study Questions for Test 2
... Study Questions for Test 2 Chapters 6, 8, 19 and 20 What forms of electromagnetic radiation have wavelengths shorter and longer than visible light? How is the energy of a photon related to its wavelength? The largest optical telescopes in the world today are what type? What are observational advanta ...
... Study Questions for Test 2 Chapters 6, 8, 19 and 20 What forms of electromagnetic radiation have wavelengths shorter and longer than visible light? How is the energy of a photon related to its wavelength? The largest optical telescopes in the world today are what type? What are observational advanta ...
Kepler`s Laws Powerpoint
... Each planet orbited a point, called the epicenter, that orbited the Earth at varying speeds. This model allowed for retrograde motion and made fairly accurate predictions for the position of the stars and planets (5 – 10% error). ...
... Each planet orbited a point, called the epicenter, that orbited the Earth at varying speeds. This model allowed for retrograde motion and made fairly accurate predictions for the position of the stars and planets (5 – 10% error). ...
Eratosthenes (250 B.C) Ptolemy`s Geocentric Model
... • by 1400 the planetary positions were no longer predicted by the “almagest” almagest” • Copernicus Proposed all the following “fix” fix”: 1. Earth spins on its axis once every 23 hrs, 56 min 2. Earth and all known planets orbited the sun in circular orbits with sun at center. 3. distant stars were ...
... • by 1400 the planetary positions were no longer predicted by the “almagest” almagest” • Copernicus Proposed all the following “fix” fix”: 1. Earth spins on its axis once every 23 hrs, 56 min 2. Earth and all known planets orbited the sun in circular orbits with sun at center. 3. distant stars were ...
Integrative Studies 410 Our Place in the Universe
... – Argued that the planets move on spheres around the Earth (“geocentric” model) – Argues that the earth is spherical based on the shape of its shadow on the moon during lunar eclipses ...
... – Argued that the planets move on spheres around the Earth (“geocentric” model) – Argues that the earth is spherical based on the shape of its shadow on the moon during lunar eclipses ...
Benchmark One Study Guide: Science Benchmark Wed
... 1. What is the force that governs motion in the solar system? 2. What two factors affect the gravitational force between two objects? 3. Why does the moon revolve or orbit Earth instead of the Sun? 4. If Earth was larger in mass, how would the gravitational force be affected? S6E1-F Asteroids, Comet ...
... 1. What is the force that governs motion in the solar system? 2. What two factors affect the gravitational force between two objects? 3. Why does the moon revolve or orbit Earth instead of the Sun? 4. If Earth was larger in mass, how would the gravitational force be affected? S6E1-F Asteroids, Comet ...
Astronomy Objectives
... Doppler effect and measuring motion of stars with their absorption spectra: Red-shift → going away from us; blue-shift → coming toward us The Hubble Law; state it and describe the evidence that supports it Big Bang Theory: be able to explain how the universe was formed according to this theory; know ...
... Doppler effect and measuring motion of stars with their absorption spectra: Red-shift → going away from us; blue-shift → coming toward us The Hubble Law; state it and describe the evidence that supports it Big Bang Theory: be able to explain how the universe was formed according to this theory; know ...
Greek and Hellenistic astronomy
... appeared to move westward. However, occasionally they would appear to stop in their paths and then move eastward (which astronomers call ‘retrograde motion’ or Vakram in India). Again, they would appear to stop and again start moving westward, as in the beginning. This cycle would be repeated after ...
... appeared to move westward. However, occasionally they would appear to stop in their paths and then move eastward (which astronomers call ‘retrograde motion’ or Vakram in India). Again, they would appear to stop and again start moving westward, as in the beginning. This cycle would be repeated after ...
Word Pro - Smvocab
... Fixed Stars - those stars and other heavenly bodies that maintain fixed patterns in the sky. Hypothesis - an unproved theory tentatively accepted to explain certain facts. Magnification - the apparent increase in size of an object viewed with a lens. Magnitude - the degree of brightness of a star. M ...
... Fixed Stars - those stars and other heavenly bodies that maintain fixed patterns in the sky. Hypothesis - an unproved theory tentatively accepted to explain certain facts. Magnification - the apparent increase in size of an object viewed with a lens. Magnitude - the degree of brightness of a star. M ...
Astro 1050 HW #2
... 1. Describe the difference between the Ptolemaic and the Copernican systems in explaining retrograde motion. 2. If Copernicus’s heliocentric model did not give significantly more accurate predictions than Ptolemy’s geocentric model, why do we now prefer Copernicus’s model? 3. The Earth is closer to ...
... 1. Describe the difference between the Ptolemaic and the Copernican systems in explaining retrograde motion. 2. If Copernicus’s heliocentric model did not give significantly more accurate predictions than Ptolemy’s geocentric model, why do we now prefer Copernicus’s model? 3. The Earth is closer to ...
Copernican heliocentrism
Copernican heliocentrism is the name given to the astronomical model developed by Nicolaus Copernicus and published in 1543. It positioned the Sun near the center of the Universe, motionless, with Earth and the other planets rotating around it in circular paths modified by epicycles and at uniform speeds. The Copernican model departed from the Ptolemaic system that prevailed in Western culture for centuries, placing Earth at the center of the Universe, and is often regarded as the launching point to modern astronomy and the Scientific Revolution.Copernicus was aware that the ancient Greek Aristarchus had already proposed a heliocentric theory, and cited him as a proponent of it in a reference that was deleted before publication, but there is no evidence that Copernicus had knowledge of, or access to, the specific details of Aristarchus' theory. Although he had circulated an outline of his own heliocentric theory to colleagues sometime before 1514, he did not decide to publish it until he was urged to do so late in his life by his pupil Rheticus. Copernicus's challenge was to present a practical alternative to the Ptolemaic model by more elegantly and accurately determining the length of a solar year while preserving the metaphysical implications of a mathematically ordered cosmos. Thus his heliocentric model retained several of the Ptolemaic elements causing the inaccuracies, such as the planets' circular orbits, epicycles, and uniform speeds, while at the same time re-introducing such innovations as,Earth is one of several planets revolving around a stationary Sun in a determined orderEarth has three motions: daily rotation, annual revolution, and annual tilting of its axisRetrograde motion of the planets is explained by Earth's motionDistance from Earth to the Sun is small compared to the distance to the stars.↑ 1.0 1.1 ↑