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Name

... Example: The Great Red Spot on Jupiter has been around since: Galileo First used a telescope to look at Jupiter . (around 350 years ago) ...
Review3-2016
Review3-2016

... Asteroid, meteorites and comets. What is the asteroid belt, how we believe it was formed and where it is located? What are the size distribution of the asteroids. Compare the size of the largest asteroid with the planet Pluto. What is the composition of a meteorite. What is the structure of a comet? ...
Hertzsprung-Russell Diagram
Hertzsprung-Russell Diagram

... ...
Kepler`s Laws
Kepler`s Laws

... ideas of eccentrics and equants (combinations of circular motions) did not provide an accurate accounting of planetary movements. Johannes Kepler adopted the Copernican theory that Earth revolves around the sun (heliocentric, or sun centered, view) and closely examined Tycho Brahe's meticulously rec ...
Scale Model Solar System Teacher`s Guide
Scale Model Solar System Teacher`s Guide

... o You can complete the planet walk as a class, have student groups make parallel model solar systems, or have them radiate out from a central point. Consider class management issues and location in deciding which approach to take with your own class(es). Extra adult helpers may be useful if you choo ...
Objects in the Kuiper belt are made mostly of rock and
Objects in the Kuiper belt are made mostly of rock and

... a) It would be much brighter in appearance. B) It would have only one tail c) It would not have a nucleus. D) It would not have a coma. 14. Suppose we discover a new comet on an orbit that brings it closer to the Sun than Mercury every 125 years. What can we conclude? a) It came from the Oort cloud. ...
PLEIADES - ISILIMELA - Communicating Astronomy With The Public
PLEIADES - ISILIMELA - Communicating Astronomy With The Public

Part 2 - Hewlett
Part 2 - Hewlett

... As an ellipse gets more elliptical, the value of the orbit’s eccentricity ______________________________________________________________________________ increases (gets closer to 1). ______________________________________________________________________________ ...
Chapter 8 The Parts of the Solar System Section 8.1 The Sun
Chapter 8 The Parts of the Solar System Section 8.1 The Sun

... is liquid, but the inner ore is solid. Earth is unique in our solar system in having liquid water at its surface. In fact, most of Earth’s surface, about 70 percent, is covered with water. Perhaps our planet should be called “water” instead of “earth”! Earth has a suitable temperature range for wate ...
Chapter 6 - Formation of the Solar System
Chapter 6 - Formation of the Solar System

... Rules of the Solar System Our Solar System follows a set of rules that give us clues about how the Solar System formed. This helps us to form a theory about how planetary systems form around other stars. Exceptions to these rules in our Solar System challenge our theory. Theory also challenged by d ...
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Quentin Parker Lecture 1b - PowerPoint file.

... found around other stars whose orbits turned out smaller than the orbit of Mercury in our own system. The planet around 51 Pegasi is at a distance of ~7million Km from its star, taking a mere 4.2 days to complete its orbit. The artist has shown prominences and sunspots on 51 Pegasi, evidence of an a ...
Astro history notes 1
Astro history notes 1

... • With no street lights and no alarm clocks… • The Night sky was a great glowing question… • Who are we? (no answer yet?) • Why are we here (not clear on that one either…?) • Where are we? • Humans have been working on that one for a long time! ...
The Universe
The Universe

... Number 1 is a celestial body that does not give off light but does illuminate. Number 2 is a celestial body that ................................... ...
Planet Profile for Uranus
Planet Profile for Uranus

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FREE Sample Here
FREE Sample Here

... __X__ The heavily cratered surfaces we see on some planets and moons, which indicates a period of intense bombardment associated with accretion. __X__ Radiometric dating has shown that the Earth, Moon, and asteroids all solidified at approximately the same time. __X__ Visual evidence from Hubble sho ...
Unit Review Name
Unit Review Name

... D. Scientists lost interest in space studies as other discoveries were made. 12. What is the main advantage to having the Hubble Space Telescope located in space ...
PowerPoint Presentation - AY 4: The Stars
PowerPoint Presentation - AY 4: The Stars

... The Keck are connected by a light tunnel and can be used as an optical interferometer with the resolution of an 85m telescope. ...
Light: The Cosmic Messenger
Light: The Cosmic Messenger

... potassium-40, half of which decays into argon-40 every 1.25 billion years. You open the rock and find 15 atoms of argon-40 for every atom of potassium-40. How long ago did the rock form? a) ...
Don`t Panic, But the Sun Will (Far) Outlive Earth (Op-Ed)
Don`t Panic, But the Sun Will (Far) Outlive Earth (Op-Ed)

... of the sun will probably reach the current orbit of Mars – and, while the Earth’s orbit may also have expanded outwards slightly, it won’t be enough to save it from being dragged into the surface of the sun, whereupon our planet will rapidly disintegrate. Life on the planet will run into trouble wel ...
Starlight and What it Tells Us
Starlight and What it Tells Us

... • Deneb: -7.1 (bright as crescent moon) – Note: Deneb - Altair about 10 magnitudes = 100 x 100 = 10,000 times ...
Gravitation and Orbital Motion
Gravitation and Orbital Motion

... 9. Mars orbits the Sun in about 5.94×107 seconds (1.88 Earth years). (a) What is its semimajor axis (orbital radius) in meters? (The mass of the Sun is 1.99×1030 kg.) (b) What is Mars' semimajor axis (orbital radius) in AU? distance between Earth and Sun is 1 AU = 1.50×1011 m. 10. An extrasolar pla ...
PSRD: Dynamics and Chemistry of Planet Construction
PSRD: Dynamics and Chemistry of Planet Construction

... Planetary dynamicists knew that overcoming these problems would require including more planetesimals in the simulations. They reasoned that more planetesimals interacting with planetary embryos would cause more rapid accretion and less elliptical and inclined orbits. The underlying cause is that the ...
Test#4
Test#4

... 18. The reason the Solar system does not have a lot of dust and gas between the planets is a) the solar wind blew the dust and gas out of the Solar system b) the planets accreted all the gas and dust c) the early Solar system was made up only of Hydrogen and Helium d) the Sun burns them up 19. All ...
Mercury By Sarah, Nicole B and Grace
Mercury By Sarah, Nicole B and Grace

... • Did you know that mercury is the smallest planet in the solar system? • Here is a pic: ...
Free PowerPoint - Interactive Science Teacher
Free PowerPoint - Interactive Science Teacher

... • Eratosthenes (200 BC) used the sun’s shadow to calculate earth’s circumference (and was only 400 meters off) • Hipparchus (150 BC)- successfully used a technique called “triangulation” to accurately measure the distance between the earth and the moon • The Arabs- gave us star names like Betelgeuse ...
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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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