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HW6 class solution
HW6 class solution

... At first glance, this seems to show that the circular orbit assumption is also valid for Mercury and Pluto! One reason for this may be that the standard mean radii are calculated from the orbital period. Mercury and Pluto don’t have very circular orbits because their orbital eccentricities are too f ...
Some Concepts of Physics
Some Concepts of Physics

Europa`s structure
Europa`s structure

... Europa has a thin (3 miles thick) crust made mostly of water-ice. Underneath lies a vast liquid layer of water, perhaps 30 miles thick. But most of the moon is made of rock, with perhaps an iron core. Density = 3.0 Europa has a thin, ...
Planning Map
Planning Map

... (A) know the definition of science and understand that it has limitations, as specified in subsection (b)(2) of this section; (B) know that scientific hypotheses are tentative and testable statements that must be capable of being supported or not supported by observational evidence. Hypotheses of d ...
THE COSMIC CRASH
THE COSMIC CRASH

Next: Planetary Geology Entering A New Phase of the Course Today
Next: Planetary Geology Entering A New Phase of the Course Today

... •  Second Phase: Why is the Solar system laid out this way? •  Third Phase: Evolution of the Planets •  Final Phase: What about other solar systems? ...
AST 105 Intro Astronomy The Solar System
AST 105 Intro Astronomy The Solar System

Section 7.3 - CPO Science
Section 7.3 - CPO Science

... A faint object in the night sky could be a dim object that is relatively nearby or a bright object that is far, far away. ...
downloadable pdf - University of Florida
downloadable pdf - University of Florida

Science Program — Key Stage 2
Science Program — Key Stage 2

... into space. They use mathematical models and computer simulations to investigate their questions. The chart below gives some information about all the planets. Different resources might give different information because new moons, for example, are always being discovered. Sometimes, again, as an ex ...
Lecture03
Lecture03

... • Walk to Earth’s distance, turn around and take a picture of the basketball (sun). • Walk to Jupiter’s distance, take picture of sun. • Walk to Neptune’s distance, take picture of sun. • Assemble all images, along with explanations, into a ...
Day 12 - Ch. 5 - Mercury and Venus
Day 12 - Ch. 5 - Mercury and Venus

... Venus rotates very slowly backwards compared to the other Planets, so that it is rotating clockwise (others are CCW). Mercury and Venus both have almost no axial tilt, Earth and Mars both have similar axial tilts and rotation rates. ...
Chapter 4. Orbits
Chapter 4. Orbits

... it becomes impossible, after awhile to model any system precisely. Even in the case of the Solar System, we do not know how long into the future it will remain stable, beyond a few million years. We can integrate forward to that extent and see that the Earth, for example, will not get ejected by som ...
chapter14 - Empyrean Quest Publishers
chapter14 - Empyrean Quest Publishers

... Rise in core temperature causes fusion rate to rise, so core expands and cools down ...
Educator Guide: Starlab (Grades 6-8)
Educator Guide: Starlab (Grades 6-8)

... Red Giant – the later stages of a star after it has exhausted the hydrogen in its  core, and begins to fuse together heavier elements. This causes the star to expand  and its outer layers cool and take on a reddish hue. Red Supergiant – an especially large red giant star. Red supergiant stars can  h ...
View District Syllabus - Tarrant County College
View District Syllabus - Tarrant County College

... identifying stars and constellations; b. explaining celestial coordinates; c. defining astronomical unit; d. defining the terms parsec and light year; e. explaining the scientific method. ...
Chapter 25: The Solar System Introduction to the Solar System
Chapter 25: The Solar System Introduction to the Solar System

... Unlike the geocentric model (top image), the heliocentric model (lower image), had the Sun at the center, and did not require epicycles. Although Copernicus’ model worked more simply than Ptolemy’s, it still did not perfectly describe the motion of the planets. The problem was that, like Ptolemy, Co ...
The Jovian Planets
The Jovian Planets

... Umbriel, Titania, Oberon); now 22 more are known (total ...
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... protoplanet) building larger, a few 1000 km size objects (Moon-size), the protoplanets. Last stage The few dozens protoplanets on a ~108 (protoplanet→ million year timescale undergo giant planet) impacts resulting in a few terrestrial planets on well-spaced, nearly circular and low inclined orbits ...
Space 2006
Space 2006

... Spring tides: These are the when we have the greatest difference between high tides and low tides. This occurs at the full and new moon phases because the sun's gravitational pull adds to the force that the moon's gravity is exerting and we have the greatest difference between high and low tide. Nea ...
1. dia - uri=members.iif
1. dia - uri=members.iif

... Would Brahe’s measurements be able to distinguish between them and so determine which one was correct? For the next 20 years, Brahe catalogued accurate data on the positions of the Sun, the Moon, and the planets. His measurements were more accurate, than the earlier data.  The result was, that neit ...
ASK 8 Science
ASK 8 Science

... Ozone Depletion Ozone (O3) is a molecule made up of 3 atoms of oxygen instead of two, which is Oxygen gas (O2). It is found in the upper atmosphere of Earth and protects living organisms from harmful ultraviolet radiation. Certain molecules produced by human activity, such as CFCs, react with ozone ...
The Earth - Widener University
The Earth - Widener University

... 1. basalts – dark, fine-grained rocks similar to terrestrial basalts (Mg-Fe silicates) – high density, found in mare, cooled rapidly, give youngest ages (3.2-3.8 billion ...
AD-5.1 Space - CAP Members
AD-5.1 Space - CAP Members

... effect of gravity. If objects decrease in distance from one another, the gravity increases. In this activity, the cookie sheet holds the cup and water in place. Once the cookie sheet is removed, the water and cup fall together. Activity Two ** - This activity also demonstrates microgravity. While t ...
AST1001.ch10
AST1001.ch10

... Early searches for solar neutrinos failed to find the predicted number More recent observations also found a deficit of neutrinos. A new theory of the neutrino predicts that they have mass and can change form. This theory agrees with the observed neutrino numbers. ...
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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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