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Quiz Maker - Geneva 304
Quiz Maker - Geneva 304

... 1. Why did early civilizations divide the stars into groups and shapes? 2. Name at least three of the great civilizations that studied the night sky. 3. Give some examples of other names given to Polaris by other civilizations. 4. What is the zodiac and why was it created? 5. How many signs of the z ...
Section 1
Section 1

... Since Galileo’s time, our knowledge of the solar system has increased dramatically. Galileo knew the same planets that the ancient Greeks had known—Mercury, Venus, Earth, Mars, Jupiter, and Saturn. Since Galileo’s time, astronomers have discovered three more planets—Uranus, Neptune, and Pluto. Astro ...
Unit 2 Section 1
Unit 2 Section 1

... Since Galileo’s time, our knowledge of the solar system has increased dramatically. Galileo knew the same planets that the ancient Greeks had known—Mercury, Venus, Earth, Mars, Jupiter, and Saturn. Since Galileo’s time, astronomers have discovered three more planets—Uranus, Neptune, and Pluto. Astro ...
Review Sheet
Review Sheet

... I. I can identify properties and characteristics of comets. A comet is made of water ice, dry ice, frozen ammonia, dust, dirt, and rocks. A comet has been described as a “dirty snowball” or an “icy dirtball.” It is made up of three major parts. Nucleus (the “dirty snowball, “icy dirtball,” or the ac ...
Venus Roman Goddess of Love Venus
Venus Roman Goddess of Love Venus

... Venus facts 1 Terrestrial planet structure comprising core-mantle-crust, and similar composition to that of the Earth. No tectonic motion but may still be some volcanic activity. Conditions determined by a runaway greenhouse effect. Surface invisible from outside due to dense cloud cover, upper clo ...
AST1001.ch3
AST1001.ch3

... distances in AU). But . . . • The model was no more accurate than Ptolemaic model in predicting planetary positions, because it still used perfect circles. ...
Physics Problems
Physics Problems

... 12. When a car turns on a banked curve, two other centripetal forces are applied to the car (other than friction). Draw a freebody diagram to help identify these forces (each will have a centripetal component). 13. Does the force of gravity do work on the moon as it orbits the earth (assume a circul ...
File
File

... rotating, gas giant planet. I am the second largest planet in the solar system, next to Jupiter. But I think I am much more beautiful, because I have a majestic system of rings made up of chunks of ice and rocks. Host: Any moons? Saturn: Oh, yes. Your astronomers on Earth have found at least 31 moon ...
Review Powerpoint - Physics and Astronomy
Review Powerpoint - Physics and Astronomy

... • Laws of Newtonian mechanics explained Kepler’s observations. • Gravitational force between two masses is proportional to the product of the masses, divided by the square of the distance ...
Powerpoint - Physics and Astronomy
Powerpoint - Physics and Astronomy

... The Moon Planets Perhaps a meteor shower, comet, or other rare event Stars - about 3000 visible Patterns of stars - constellations 88 of them Useful for finding our way around the sky, navigating the oceans Satellites, airplanes, clouds, lightning, light pollution ... ...
The Year and The Seasons
The Year and The Seasons

... new constellations b) it will be composed of ½ new constellations c) it will have no effect. ...
Volume 20 Number 10 September 2012
Volume 20 Number 10 September 2012

... The Kepler spacecraft has discovered 41 new and orange balls with long bright trails.” transiting planets in 20 star systems, increasing the “The second one I saw was the brightest one I ever saw. number of Kepler's confirmed planets to 116 in 67 It was so bright that it cast shadows and left an ion ...
Document
Document

Galileo, Newton and Gravity 1/31
Galileo, Newton and Gravity 1/31

Lecture 19 - Stellar Lifecycles
Lecture 19 - Stellar Lifecycles

... • When a star uses up the Hydrogen in its core it can no longer support itself against gravity. • The core compresses and temperatures begin to rise. • Temperatures may get high enough outside the core to begin The life cycle of a star like the Sun Hydrogen fusion there instead. • The pressure from ...
Partial Solar Eclipse Watch Party
Partial Solar Eclipse Watch Party

... More than 100 people joined us on Thursday, October 23 to watch as the Moon slipped in front of the Sun during a partial solar eclipse. We had telescopes and cameras set up to safely view the Sun. Solar glasses were available for purchase in the ticket booth. News stations from across the Metroplex ...
17.Extra-solar
17.Extra-solar

January
January

... Morning Stars - Venus and Jupiter. Evening Stars - Saturn, Mars and Mercury. Special Events Anticipated: METEOR SHOWERS - Quadrantid Meteor Showers the first week of the month. Best seen after midnight and early morning and conditions are expected to be ideal. However, the number of meteors are expe ...
Life on Mercury & Venus
Life on Mercury & Venus

... that can melt lead (pretty much everywhere) • Reasons for Venus situation indicate Earth would look like that too if it was at Venus distance from Sun • So … in general it is unlikely that planets this close to a star like the Sun will be able to support life (!) ...
Astrophysics - Florence
Astrophysics - Florence

... http://www.bcssa.org/newsroom/scholarships/great8sci/Photos/Space_Photos/Solar_Syste ...
The Solar System
The Solar System

... atmosphere, no erosion has taken place on its surface. We see Mercury much the way it was soon after it formed. ...
Lecture 5
Lecture 5

... There is a VERY fast increase in nuclear energy production above 1,000,000K. At 15,000,000K in the core nuclear power generated finally balanced the luminosity from the surface. That’s the equilibrium we are still in. ...
Astr40 HWIII(new) - Empyrean Quest Publishers
Astr40 HWIII(new) - Empyrean Quest Publishers

Lecture week 5 File
Lecture week 5 File

The Young Astronomers Newsletter Volume 22 Number 3 February
The Young Astronomers Newsletter Volume 22 Number 3 February

... There are 4 minor meteor showers in February with averages up to 3 per hour. The Centaurids are “southern hemisphere” showers with most of the observing reports, visual and radio, coming from Australia. From February 2nd through the 25th, the Alpha Centaurids and Beta Centaurids are only 8° apart wi ...
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Formation and evolution of the Solar System



The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.
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