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Lecture Two (Powerpoint format) - FLASH Center for Computational
Lecture Two (Powerpoint format) - FLASH Center for Computational

...  The mystery of retrograde motion can be explained relatively simply in a heliocentric model of the solar system.  An inner bod y (like the Earth) is moving more rapidly than an outer body (like Mars), and so will “pass” it like a faster car on the expressway.  During this passing, the outer plan ...
Planetary Science - Laboratory for Atmospheric and Space Physics
Planetary Science - Laboratory for Atmospheric and Space Physics

... Planetary science focuses on many aspects of solar system objects, from their deep interiors to the distant influences of a planet’s gravitational or magnetic field far from the planet’s surface. LASP planetary scientists study data from ground, telescope, and space-based instruments to understand t ...
The Solar System - Thomas County Schools
The Solar System - Thomas County Schools

... to the sun, and have rocky surfaces (Mercury, Venus, Earth, Mars) 7. The outer planets are larger, farther from the sun and do not have solid surfaces (Jupiter, Saturn, Uranus, Neptune) ...
space exploration
space exploration

... Jupiter is a gas giant. Most of its mass is made up of gases although the gravity is so strong, these gases almost act like a solid. In 1994, the Shoemaker-Levy 9 comet crashed into Jupiter, the FIRST time we have ever witnessed an impact with another planet. ...
The Planet Migration Hypothesis – Saving The Paradigm
The Planet Migration Hypothesis – Saving The Paradigm

... now diverging. Or, it could represent a converging resonance that will reach exact parity at some future time. Finally, it could simply signify a stable condition where the question of divergence or convergence is purely academic. There is another type of mean motion orbital relationship involving m ...
Slide 1
Slide 1

The Origins of Everything PowerPoint
The Origins of Everything PowerPoint

... The Late Heavy Bombardment (commonly referred to as the lunar cataclysm, or LHB) is a period of time approximately 4.1 to 3.8 billion years ago (Ga) during which a large number of impact craters were formed on the Moon, and by inference on Earth, Mercury, Venus, and Mars as well. The LHB is "late" o ...
PTYS/ASTR 206 – Section 3 – Homework 4 – Assigned 3/12/09
PTYS/ASTR 206 – Section 3 – Homework 4 – Assigned 3/12/09

... Currently the heat flow from the interior of Mars is 0.03 Wm2 and from the Earth is 0.08 Wm2. Use values in the table for question 1 to figure out the surface area (area of a sphere is 12.6*R2, where R is the radius) of each planet and use that to figure out how much energy each planet is producing ...
ASTRONOMY 120
ASTRONOMY 120

A new Cosmos – a novel Physics
A new Cosmos – a novel Physics

One Km Walk - measurementmagic
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... The nine planets do not stay in a straight line. They stay about the same distances from the Sun, but circle around it (counterclockwise as seen from the north). They go around at various speeds. The inner planets not only have smaller circles to travel but move faster. Thus, Mercury goes around in ...
Unit Title: Spirit of the Seasons and the Night Sky
Unit Title: Spirit of the Seasons and the Night Sky

... that uses the hand and outstretched arm. (brief demonstration) Activity 6 - The Path of the Sun (Science / Maths) Students create a model which represents the path of the sun on four special occasions of the year in the Southern Hemisphere – Summer Solstice, Winter Solstice and the Autumn and Spring ...
How to Use This Presentation
How to Use This Presentation

... • Pluto, now defined as a dwarf planet, orbits the sun in an unusually elongated and tilted ellipse. • It spends most of its orbital period beyond Neptune’s orbit, but is sometimes closer to the sun than Neptune. • Scientists think Pluto is made up of frozen methane, rock, and ice, with an average t ...
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... over 150 million km away (500 light seconds) The largest stars (eg: Betelgeuse, Antares) are over 400 million km across (more than 300 times the diameter of the Sun) The brightest stars are over 10,000 times brighter than the sun. The distance to our nearest large galaxy, Andromeda (2.9 million ligh ...
Dating the Universe
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... – Sun and planets formed from a vast nebula of gas [Descartes, 1644] that swirled around and condensed into planets [Kant, 1755] – Nebula contracted into a fast spinning disk, shedding "rings" of material that formed the planets [Laplace, 1796] ...
Earth in Space Poetry Booklet
Earth in Space Poetry Booklet

... And the cycle‘s half way done. As the Moon goes through its’ orbit A third ninety degrees A third quarter moon Is what you will see. Third hundred, sixty degrees; The Moon’s back where it began; The phases of the Moon Will cycle once again. ...
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... – Our solar system is full of planets, moons, asteroids and comets, all of which revolve around the Sun at the center. – When a star forms from a nebula, gravity pulls most of the material into the new star, but some may also clump together to form objects in a solar system. ...
A new Cosmos – a novel Physics
A new Cosmos – a novel Physics

... which included precise astronomical measurements already available in the mid 16th century: If the earth rotates around the sun, which is located in the center of the universe, then one should observe a small variation of the stars’ position during the year. Such an effect, called parallax, could no ...
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Powerpoint for today

... Rocky fragments ranging from 940 km across (Ceres) to < 0.1 km. 100,000 known. Most in Asteroid Belt, at about 2-3 AU, between Mars and Jupiter. The Trojan asteroids orbit 60 o ahead of and behind Jupiter. Some asteroids cross Earth's orbit. Their orbits were probably disrupted by Jupiter's gravity. ...
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The Family of Stars

STUDY GUIDE Multiple Choice Identify the choice that best
STUDY GUIDE Multiple Choice Identify the choice that best

... Which of the following is the most likely reason that ancient observers believed that Earth was the center of the universe? a. The Earth seemed to move on its axis. b. Earth’s motions are only recently known because of high-powered telescopes. c. Objects in the sky appear to circle around Earth. d. ...
ASTRONOMY - Distance from the Sun (MC Quiz 1)
ASTRONOMY - Distance from the Sun (MC Quiz 1)

... ASTRONOMY - Distance from the Sun (MC Quiz 1) How far are we from the Sun? Does that distance ever change? How does this distance affect our climate on Earth? ...
ADDITIONAL NOTES THE JOVIAN PLANETS AND SOME OF
ADDITIONAL NOTES THE JOVIAN PLANETS AND SOME OF

... Interior of liquid molecular and liquid “Metallic” hydrogen, and a solid core. The liquid surface is about 3000 degrees C, with a very thick complex atmosphere with colors maybe due to compounds of phosphorus and\or sulfur, Great Red Spot is a large circular storm of high ...
Pottsgrove School District Unit Planning Organizer Subjects Science
Pottsgrove School District Unit Planning Organizer Subjects Science

... 1. Relevant to the sun, Earth’s rotation, revolution and tilt cause day, night, seasons, and climate. ...
20.2-the-Solar_System
20.2-the-Solar_System

... • A solid, rocky, cratered surface with ...
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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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