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Semester 2 Course Review
Semester 2 Course Review

... How has the model of our Solar System changed over time? Why? How does this change in Solar System models demonstrate the scientific process? How are planetary systems formed? Why are planets closer to the sun made of different substances than planets farther from the sun? Why do some planets appear ...
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... shuttle does not have to push on the astronaut (or anything else in the cabin) to keep him up. The space shuttle and the astronaut are in a constant state of freefall around the earth.’ • So with the cup, when it is in free fall the gravitational pull is pulling equally on the water and the cup, so ...
Eclipses, Distance, Parallax, Small Angle, and Magnitude (Professor
Eclipses, Distance, Parallax, Small Angle, and Magnitude (Professor

... see bright stars in the sky. – Animals become quiet – The Sun’s corona (and prominences if present) are observed – The diamond ring phenomena can occur. – Shadow fringes can be seen moving across the ground. ...
PDF only - at www.arxiv.org.
PDF only - at www.arxiv.org.

... increases and it reaches a maxima at the centre of the retrograde loop [24,25]. See Fig 1 for the relative orbital speed changes of Mars in its closed approach to earth during the year 2003 while undergoing apparent retrograde motion. Along with the speed the geocentric distance of the planet from e ...
The Gas Giants Astronomy Lesson 13
The Gas Giants Astronomy Lesson 13

... The four outer planets: Jupiter, Saturn, Uranus, and Neptune, are much larger and more massive than Earth, and they do not have solid surfaces. Because these planets are so large and composed of gases, they are commonly referred to as the gas giants. Like the sun, the gas giants are comprised of mai ...
TAKS objective 5 Earth and Space Systems
TAKS objective 5 Earth and Space Systems

... 1. Land heats up faster than water because land has a lower specific heat than water does. This causes the air over land to heat faster than the air over water. The warm air rises, starting a convection current that pulls air toward land from the ocean. This keeps air over the land from getting too ...
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... more-detailed observations. Kepler discovered that the planets had elliptical, not circular, orbits and that the speed of planetary motion decreased with distance from the Sun. Kepler was the first astronomer to calculate the length of time it would take for planets to complete an orbit. Italian mat ...
Exam  # 2 – Tue 11/08/2011
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CP CircularGravityReview

... Gircular Motion TRUE OR FALSEOUESTIONS Circle the correct answer. 1. The outside rim of a rotating turntable has a greaterlinear speedthan parts closerto the axis. ...
Astronomy Exam #2 for the 10
Astronomy Exam #2 for the 10

... Earth during the early 1990’s because, with the larger baseline of Jupiter’s orbit at 5.2 AU, all stars would have parallax angles about 5 times larger than those measured from Earth. Thus we would be able to measure the distance to stars with spectroscopic parallax about five times farther away out ...
Astronomy 12 - hrsbstaff.ednet.ns.ca
Astronomy 12 - hrsbstaff.ednet.ns.ca

... iii. What is the relationship between mass of a Main Sequence star and luminosity? iv. What are Cepheid Variable stars and where do they lie on the HR diagram? Give two examples of Cepheid Variable stars. d. Open the HR Diagram Explorer and answer the questions on the HR Diagram Explorer worksheet* ...
NORTHERN LIGHTS info
NORTHERN LIGHTS info

... know for sure. No one does, not until a few hours before the actual display. But there are some things you can do to improve your chances of observing a wonderful Auroral display. A little bit like salmon fishing, sometimes you must wait for the perfect conditions to “catch the big one” and get them ...
Slide 1 - Cloudfront.net
Slide 1 - Cloudfront.net

... 3. It has 333,000 times the mass of Earth. 4. The sun contains more than 99% of the mass in the solar system. 5. Composition very similar to the gas planets. ...
Chapter 12 Earth, Moon, and Sun The Moon`s Surface
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... Earth moves through space in two major ways: rotation and revolution. Earth rotates on its axis every 24 hours, causing day and night. Earth revolves around the Sun in a cycle of about 365.25 days. The modern calendar compensates for the one-fourth day by adding a day every four years. We call this ...
Rachel and the TreeSchoolers Theme Song
Rachel and the TreeSchoolers Theme Song

... It all begins with wonder With a question on your mind You will find the world is wonderful I wonder Do you wonder? The world is full of wonder Every day is a surprise You and I will find the wonderful I wonder about different planets I wonder about things too far to see I wonder what makes stars br ...
May 2017 - Museums Wellington
May 2017 - Museums Wellington

... stars marking our winter constellation, Scorpius/ Te Matau a Māui. Its brightest star, Antares/Rehua, is a variable star and is on average the 15th brightest in the night sky. Antares, one of the largest stars known, is a red supergiant almost 900 times the diameter of the Sun. If it were placed at ...
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3rd GradeBook Notes for A Feast of Words…Earth and BeyondUnit
3rd GradeBook Notes for A Feast of Words…Earth and BeyondUnit

... comets – large chunks of rock and ice that travel around the sun dwarf planet – a body in the solar system that orbits the sun, has a constant (nearly round) shape, is not a moon, and has an orbit that overlaps with the orbits of other bodies gravity – a force that pulls two objects together; gravit ...
chapter 04
chapter 04

... • Four inner planets – terrestrial planets – are rocky, small, and dense. • Four outer planets – Jovian planets – are gaseous and large. • Nebular theory of solar system formation: Cloud of gas and dust gradually collapsed under its own gravity, spinning faster as it shrank. • Condensation theory sa ...
Preview Sample 3 - Test Bank, Manual Solution, Solution Manual
Preview Sample 3 - Test Bank, Manual Solution, Solution Manual

... Zenith—The highest point in the sky, directly overhead. Meridian—The semicircle extending from the horizon due north to the zenith to the horizon due south. We can locate an object in the sky by specifying its altitude and its direction along the horizon. 5. We can measure only angular size or angul ...
The Jovian Planets
The Jovian Planets

... Very similar to Jupiter’s, just lower temperatures due to increased distance from the sun. Troposphere contains clouds arranged in 3 distinct layers composed of (in order of increasing depth) ammonia ice, ammonium hydrosulfide ice, and water ice. Above the clouds, there is a layer of haze. Total thi ...
The H-R Diagram
The H-R Diagram

... The Herzsprung Russel Diagram (HRD) is a systematic way of arranging stellar data. It plots the Absolute Magnitude (MV) or Luminosity (L/L¤) versus the Spectral Type, Surface Temperature or Color. The brightest stars are at the top and the hottest stars at the left. The radius increases diagonally t ...
Lecture 3 - UIC Home
Lecture 3 - UIC Home

... Callisto's ancient, crater-scarred surface makes it very different from its three more active sibling satellites, Io, Europa and Ganymede. Callisto, 4,800 kilometers (3000 miles) in diameter, displays no large-scale geological features other than impact craters, and every bright spot in these images ...
Chapter 13 Power Point Lecture
Chapter 13 Power Point Lecture

... © 2014 Pearson Education, Inc. ...
Pitt County Schools
Pitt County Schools

... that distinguishes one type of em radiation from another. 1.03 Analyze the electromagnetic radiation given off by a heated object (blackbody) in terms of the graph of intensity (brightness) vs. wavelength for various temperatures and describe their similarities and differences.  Analyze Wien’s law ...
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Orrery



An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; but since accurate scaling is often not practical due to the actual large ratio differences, a subdued approximation may be used instead. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to Charles Boyle, 4th Earl of Orrery — whence came the name. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
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