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Lab Activity on the Causes of the Seasons
Lab Activity on the Causes of the Seasons

Untitled - Dommelroute
Untitled - Dommelroute

... of growing from the size of a large pinhead to a mountain may have taken one hundred thousand years or so. Then the process began to slow down. The original dust and gas had been used up, and the cloud thinned. Several stars—such as Beta Pictoris—have been observed with large, thin disks of dust sur ...
Lec21_2D
Lec21_2D

... Venus and Earth both started out with similar atmospheres. But because the Earth is slightly farther away from the Sun …  Earth was a bit cooler, and had a bit more liquid water  With more liquid water, more CO2 dissolved away  With less CO2 in the atmosphere, the greenhouse effect was ...
January SKY Newsletter 2012
January SKY Newsletter 2012

... southern horizon below Canis Major between 10:00 and 11:00 p.m. The Winter Hexagon will move across the southern sky over the course of the night. Other constellations in the south at this time are very large and fairly dim, but if you are in a dark site you may want to check for observing details ...
lesson13 - e
lesson13 - e

... Base Camp Daniel – Jupiter Possible clues in text of letter:  11 times bigger than Earth  Giant ball of gas  4 large moons  Dozens of other moons (63)  Has the largest moon in solar system  12 Earth years to rotate around the Sun Copyright 2005 – Wheeling Jesuit University/Classroom of the Fut ...
CHAPTER 24 The Solar System
CHAPTER 24 The Solar System

... Venus is sometimes called Earth’s twin because its size and mass are similar to Earth’s. In 1962, Mariner 2 flew past Venus and sent back information about Venus’s atmosphere and rotation. The former Soviet Union landed the first probe on the surface of Venus in 1970. Venera 7, however, stopped work ...
The Solar System
The Solar System

... Venus is sometimes called Earth’s twin because its size and mass are similar to Earth’s. In 1962, Mariner 2 flew past Venus and sent back information about Venus’s atmosphere and rotation. The former Soviet Union landed the first probe on the surface of Venus in 1970. Venera 7, however, stopped work ...
THE NEW FRONTIER Episode 1 - Earth Series introduction and the
THE NEW FRONTIER Episode 1 - Earth Series introduction and the

Chapter 2 - personal.kent.edu
Chapter 2 - personal.kent.edu

... • No better system came long until 1542 – When Copernicus published his ...
Key Notes for Test 1
Key Notes for Test 1

... Nuclear reactions there change 4 H nuclei into 1 He nucleus with loss of mass This mass is converted to energy according to Einstein's E=mc2 Every second 600 million tons of H are converted into 596 million tons of He The missing 4 million tons of mass is converted to energy to produce 3.6 x 1020 me ...
SOLAR eclipse LUNAR eclipse
SOLAR eclipse LUNAR eclipse

Parallax and Its role In the helIocentrIc/GeocentrIc debate
Parallax and Its role In the helIocentrIc/GeocentrIc debate

... are very far away from Earth, too far to easily detect parallax. Try looking at your finger as you did above but with the finger near your eye, then farther away from your eye. When the finger is far away, it appears to move less. If it were very far away, the apparent motion would be too small to n ...
Cosmic Distance Ladder Terrence Tao (UCLA)
Cosmic Distance Ladder Terrence Tao (UCLA)

... accurate to two decimal places. ...
Earth, Moon and the Sun
Earth, Moon and the Sun

... What have you seen, other than pictures from space, that indicates Earth’s shape? Think about walking toward someone over a hill. First, you see the top of the person’s head, and then you can see more and more of that person. Similarly, if you sail toward a lighthouse, you first see the top of the l ...
the April JJMO Newsletter! - John J. McCarthy Observatory
the April JJMO Newsletter! - John J. McCarthy Observatory

... inflatable modules to the Moon’s surface and designing a moon base Jupiter at Opposition It is one of the only planets that displays surface (atmospheric) details through a moderately sized telescope. With its rapid rotation (approximately every 10 hours), the planet’s cloud belts and storms provide ...
Introduction: Gravity
Introduction: Gravity

... billion ...
The Dawn of Distant Skies
The Dawn of Distant Skies

... the invisible planet’s orbit were perin brightness that happens when a planet passes behind its host star. fectly edge-on as seen from Earth, the planet would pass directly in ideas for investigating exoplanet atmospheres and sped things front of its star, in what is known as a transit. Yet at the t ...
Saturn
Saturn

...  July 2004: Cassini arrived on Saturn ...
Name
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... 32. The first evidence of solid matter around a star other than our sun was discovered on the star called ___________________________ This solid material is expected to some day form ______________________. 33. Our sun and planets were believed to have started forming about ____________years ago. 34 ...
The Celestial Sphere
The Celestial Sphere

... circles have the same diameter; the latitude circles do not. A quick aside: you might like a very interesting book , “Longitude : The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time” by Dava Sobel “The thorniest scientific problem of the eighteenth century was how ...
Origin of Terrestrial Planets and-the Earth
Origin of Terrestrial Planets and-the Earth

... orbiting particles of different masses tend to drive the system toward a state of equipartition of kinetic enerf_f, _witfr smalle_r particles having typically higher u.* and the largest objects having the lowest. This effect is known as dynamical friction:Aswarrn ofbackground small particles acts to ...
Why are the Jovian Planets so Different?
Why are the Jovian Planets so Different?

... • If you added even more mass, Jupiter would get smaller. • Jupiter is about as large as a planet can get. ...
Chapter 8 Universal Gravitation
Chapter 8 Universal Gravitation

Facts and figures on the sun and planets
Facts and figures on the sun and planets

... (99.8% of mass of solar system) • Density: 1.41 (water = 1) • Composition (by mass): Hydrogen: 73%, Helium: 25%, ...
First Week slides - UNLV Physics - University of Nevada, Las Vegas
First Week slides - UNLV Physics - University of Nevada, Las Vegas

... Earth Uranus ...
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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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