Ch. 6: Smaller Bodies in the Solar System

Size: px
Start display at page:

Download "Ch. 6: Smaller Bodies in the Solar System"

Transcription

1 Ch. 6: Smaller Bodies in the Solar System FIGURE 9-1 (Discovering the Universe) Different Classifications of Solar System Objects Some of the definitions of the different types of objects in the solar system overlap. For example, the largest asteroids are also being classified as dwarf planets; various trans-neptunian objects (TNOs) are asteroids or comets; some comets are satellites of Jupiter; some Kuiper belt objects (KBOs) are satellites of other KBOs. Furthermore, TNOs exist in two groups: Kuiper belt objects and Oort comet cloud bodies. Some moons are as large as dwarf planets. Indeed, some moons are as large as small planets!

2 Most of the ~264,000 supposed asteroids also called minor planets - are in orbits between Mars and Jupiter in the asteroid belt, but some thousands come close to Earth. The larger ones are round, because of gravity, but the smaller ones have rough shapes. Made of silicate rock as well as metals, such as iron and nickel. Some contain carbon-bearing rock Some have their own moons. Perhaps an asteroid hit Earth 65 millions years ago, and wiped out the dinosaurs. See Table 7-1 for sizes of largest asteroids

3 (BIG 4 ARE: Ceres, 934 km; Pallas, 526 km; Vesta, 510 km; Hygiea, 408 km) The above figure shows some of the asteroids located between Mars and Jupiter. The x- axis is the distance from the Sun in units of AU. The numbers beside the object name is the order in which they were discovered. The largest (#1) and first found is called Ceres. It is 950 km in diameter. New asteroids are found by robotic telescopes. Experts expect that it will find ~100,000 objects of various size.

4 Understanding the Threat That Near-Earth Objects Pose Asteroids close to Earth are called Near Earth Objects (NEOs); 624 are Potentially Hazardous Movies in 1998: Armageddon and Deep Impact. The asteroid that wiped out the dinosaurs was 10 miles in diameter.

5 When push comes to shove: Nudging an asteroid If we bomb and asteroid, many smaller asteroids would be produced, and potentially more dangerous. Nudging is better. But still do not know how much of a nudge is acceptable. Forewarned is forearmed: Surveying NEOs to protect Earth System to protect Earth: Measure and track all asteroids with a size of more than one mile Track orbits and compute future movements and determine possibility of striking Earth Study and learn as much as possible about them After understanding a threat, engineers can plan a defense. Searching for Small Points of Light Occultation of a star

6 Meteors: Wishing on a Shooting Star Meteoroid: small object in space, usually a fragment from an asteroid or comet, orbiting the Sun. Sometimes rocks blasted off Mars or Earth s Moon. Cometary meteoroids: fluffy little dust particles shed by comets. Asteroidal meteoroids: from microscopic to boulders = chips from asteroids (socalled minor planets): Meteor: a flash of light produced when a small object (a meteoroid) enter the Earth s atmosphere from space, sometimes called a shooting star or falling star. Meteorite: solid object from space that has fallen to the surface of Earth: stony, iron, stony-iron meteorites Micrometeorites are so very small that they do not create enough friction to ignite, do drift slowly to the ground. These exist in your hair and over your body, but too small to see without a microscope. Sporadic meteor : when you see a shooting star at night, you are probably

7 Meteor shower : many from same direction. Fireball : sometime an oooooooooooooooooo!!

8 A bolide is a fireball that explodes or produces a loud noise. See more meteors after midnight than before because, from midnight to noon, you are on the forward side of Earth, where our planet s plunge through space sweeps up meteoroids. After this time the opposite situation occurs. At certain times of the year can see meteor showers, when Earth passes through a great ring of meteorites that runs all the way around the comet that sheds them. The direction from which they come is the radiant. Most famous is Perseides. Do NOT have to face this direction. Best way to observe is on a lounge chair or blanket and pillow, looking half way up from the horizon to the zenith.

9 Comets: The Lowdown on Dirty Ice Balls Comets: great blobs of ice and dust that slowly track across the sky, looking like fuzzy balls trailing gassy veils. Usually long orbits, and coming from the Oort cloud, very far away. Comets usually have a head and a tail; the head later named the nucleus. It is a mixture if ice and frozen gases, such as carbon monoxide and carbon dioxide, and solid particles dust or dirt Origin: born from around Jupiter and out to the Oort cloud (10,000 AU; 1 AU = 93million miles). Kuiper belt. Passing stars sometimes disturb this region, and send comets in new directions. A comet far from the Sun only has a nucleus (no head or tail). May be from 2 to dozens of miles in diameter. The head and tail appear when getting close to the Sun, which heats and melts it!! The hazy shining cloud around the head is called the coma (Latin for hair). The coma is also reflected light from billions of particles from the Sun.

10 Also, satellites moving W to E and too slow for a meteor and to fast for a comet. A meteor lasts for seconds; a comet is visible for days, weeks, and even months. Meteors flash across the sky as they fall overhead, within 100 miles or so from the observer. Comets crawl across the sky at distances of millions of miles. Meteors are common; comets that can be seen easily with the naked eye come less than once a year, on average

Unit 3 Lesson 6 Small Bodies in the Solar System. Copyright Houghton Mifflin Harcourt Publishing Company

Unit 3 Lesson 6 Small Bodies in the Solar System. Copyright Houghton Mifflin Harcourt Publishing Company Florida Benchmarks SC.8.N.1.1 Define a problem from the eighth grade curriculum using appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of

More information

Solar System Junk however, a large number of bodies were left over as Junk or the debris of planet building

Solar System Junk however, a large number of bodies were left over as Junk or the debris of planet building Solar System Junk So far, we ve taken a brief look at the 8 planets of the solar system, their array of moons or natural satellites, and how we think such a system formed. Most of the material in the solar

More information

Comets, Asteroids, and Meteors. By: Annette Miles

Comets, Asteroids, and Meteors. By: Annette Miles Comets, Asteroids, and Meteors By: Annette Miles What is a comet? A comet is a small body which scientists sometimes call a planetesimal. They are made out of dust, ice rock, gas, and. They are kind of

More information

Chapter 19: Meteorites, Asteroids, and Comets

Chapter 19: Meteorites, Asteroids, and Comets Chapter 19: Meteorites, Asteroids, and Comets Comet Superstition Throughout history, comets have been considered as portants of doom, even until very recently: Appearances of comet Kohoutek (1973), Halley

More information

Vagabonds of the Solar System. Chapter 15

Vagabonds of the Solar System. Chapter 15 Vagabonds of the Solar System Chapter 15 ASTR 111 003 Fall 2007 Lecture 13 Nov. 26, 2007 Introduction To Modern Astronomy I: Solar System Introducing Astronomy (chap. 1-6) Planets and Moons (chap. 7-15)

More information

Vagabonds of the Solar System

Vagabonds of the Solar System Vagabonds of the Solar System Guiding Questions 1. How and why were the asteroids first discovered? 2. Why didn t the asteroids coalesce to form a single planet? 3. What do asteroids look like? 4. How

More information

12/3/14. Guiding Questions. Vagabonds of the Solar System. A search for a planet between Mars and Jupiter led to the discovery of asteroids

12/3/14. Guiding Questions. Vagabonds of the Solar System. A search for a planet between Mars and Jupiter led to the discovery of asteroids Guiding Questions Vagabonds of the Solar System 1. How and why were the asteroids first discovered? 2. Why didn t the asteroids coalesce to form a single planet? 3. What do asteroids look like? 4. How

More information

The solar system pt 2 MR. BANKS 8 TH GRADE SCIENCE

The solar system pt 2 MR. BANKS 8 TH GRADE SCIENCE The solar system pt 2 MR. BANKS 8 TH GRADE SCIENCE Dwarf planets Following the discovery of multiple objects similar to Pluto (and one that was even bigger than Pluto) a new classification for planets

More information

Small Bodies in our Solar System. Comets, Asteroids & Meteoroids

Small Bodies in our Solar System. Comets, Asteroids & Meteoroids Small Bodies in our Solar System Comets, Asteroids & Meteoroids * A Small Body is any object in the solar system that is smaller than a planet or moon, such as a comet, an asteroid, or a meteoroid. Compiled

More information

Lecture Outlines. Chapter 14. Astronomy Today 7th Edition Chaisson/McMillan Pearson Education, Inc.

Lecture Outlines. Chapter 14. Astronomy Today 7th Edition Chaisson/McMillan Pearson Education, Inc. Lecture Outlines Chapter 14 Astronomy Today 7th Edition Chaisson/McMillan Chapter 14 Solar System Debris Units of Chapter 14 14.1 Asteroids What Killed the Dinosaurs? 14.2 Comets 14.3 Beyond Neptune 14.4

More information

This asteroid was visited by the NEAR Shoemaker probe, which orbited it, taking extensive photographs of its

This asteroid was visited by the NEAR Shoemaker probe, which orbited it, taking extensive photographs of its Chapter 9 Part 1 Asteroids and Comets Why is there an asteroid belt? This asteroid was visited by the NEAR Shoemaker probe, which orbited it, taking extensive photographs of its surface, and, on February

More information

What are they? Where do they come from?

What are they? Where do they come from? Comets What are they? Where do they come from? Lesson Objectives To distinguish between the orbits of planets and those of comets. To describe the likely origins of short-period and long-period comets.

More information

Two significant figures are enough! You can round your calculations to 2 significant figures. Hopefully this will prevent some of the sloppy

Two significant figures are enough! You can round your calculations to 2 significant figures. Hopefully this will prevent some of the sloppy Homework Issues Two significant figures are enough! You can round your calculations to 2 significant figures. Hopefully this will prevent some of the sloppy mistakes. The speed of light is 299,792,458

More information

Chapter 12 Remnants of Rock and Ice. Asteroid Facts. NEAR Spacecraft: Asteroid Eros

Chapter 12 Remnants of Rock and Ice. Asteroid Facts. NEAR Spacecraft: Asteroid Eros Chapter 12 Remnants of Rock and Ice Asteroids, Comets, and the Kuiper Belt Asteroid Facts Asteroids are rocky leftovers of planet formation Largest is Ceres, diameter ~1,000 km (most smaller) 150,000 in

More information

Brooks Observatory telescope observing

Brooks Observatory telescope observing Brooks Observatory telescope observing Mon. - Thurs., March 22 55, 8:30 to about 9:45 PM See the class web page for weather updates. This evening s session has been cancelled. Present your blue ticket

More information

What s in our solar system?

What s in our solar system? What s in our solar system? *Sun *Planets Terrestrial Jovian Dwarf Smaller objects *Meteoroids *Comets Dust http://www.techastronomy.com/userfiles/2007/7/22/solar_system4(1).jpg *Sun a. Most of mass (>99%)

More information

Asteroids, Comets, and Meteoroids

Asteroids, Comets, and Meteoroids Asteroids, Comets, and Meteoroids Bode s Law In 1772 Johann Bode, a German astronomer, created a mathematical formula now called Bode s Law. This formula determines the pattern that describes the distances

More information

Asteroids: Introduction

Asteroids: Introduction Asteroids: Introduction Name Read through the information below. Then complete the Fill-Ins at the bottom of page. Asteroids are rocky objects that orbit the Sun in our solar system. Also known as minor

More information

TABLE OF CONTENTS. click one to go to that page, or just go on. What is the Solar System? Neptune (Pluto) The Sun. Asteroids. Mercury.

TABLE OF CONTENTS. click one to go to that page, or just go on. What is the Solar System? Neptune (Pluto) The Sun. Asteroids. Mercury. The Solar System TABLE OF CONTENTS click one to go to that page, or just go on. What is the Solar System? The Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune (Pluto) Asteroids Meteors and Meteorites

More information

Unit 12 Lesson 1 What Objects Are Part of the Solar System?

Unit 12 Lesson 1 What Objects Are Part of the Solar System? Unit 12 Lesson 1 What Objects Are Part of the Solar System? The Solar System Earth, other planets, and the moon are part of a solar system. A solar system is made up of a star and the planets and other

More information

Ag Earth Science Chapter 23

Ag Earth Science Chapter 23 Ag Earth Science Chapter 23 Chapter 23.1 Vocabulary Any of the Earth- like planets, including Mercury, Venus, and Earth terrestrial planet Jovian planet The Jupiter- like planets: Jupiter, Saturn, Uranus,

More information

A s t e r o i d s, C o m e t s & N E O s ( B a c k g r o u n d I n f o r m a t i o n )

A s t e r o i d s, C o m e t s & N E O s ( B a c k g r o u n d I n f o r m a t i o n ) A s t e r o i d s, C o m e t s & N E O s ( B a c k g r o u n d I n f o r m a t i o n ) Author: Sarah Roberts Asteroids Asteroids, Comets and NEOs - Background Information Asteroids are rocky objects which

More information

6. (11.2) What shape are typical asteroids and how do we know? Why does Ceres not have this shape?

6. (11.2) What shape are typical asteroids and how do we know? Why does Ceres not have this shape? SUMMARY Our Solar System contains numerous small bodies: dwarf planets, asteroids, comets, and meteoroids. They are important astronomically because they give us information about the time of formation,

More information

Starting from closest to the Sun, name the orbiting planets in order.

Starting from closest to the Sun, name the orbiting planets in order. Chapter 9 Section 1: Our Solar System Solar System: The solar system includes the sun, planets and many smaller structures. A planet and its moon(s) make up smaller systems in the solar system. Scientist

More information

ASTRONOMY SNAP GAME. with interesting facts

ASTRONOMY SNAP GAME. with interesting facts ASTRONOMY SNAP GAME with interesting facts Sun Sun The Sun is the largest object in the solar system The Sun's life expectancy is approximately 5 billion more years At its core, the Sun s temperature is

More information

At this point of its orbit, any solar satellite such as a comet or a planet is farthest away from the sun. What is the aphelion?

At this point of its orbit, any solar satellite such as a comet or a planet is farthest away from the sun. What is the aphelion? At this point of its orbit, any solar satellite such as a comet or a planet is farthest away from the sun. What is the aphelion? These small, rocky worlds orbit the sun generally between the orbits of

More information

Unit 2 Lesson 1 What Objects Are Part of the Solar System? Copyright Houghton Mifflin Harcourt Publishing Company

Unit 2 Lesson 1 What Objects Are Part of the Solar System? Copyright Houghton Mifflin Harcourt Publishing Company Unit 2 Lesson 1 What Objects Are Part of the Solar System? Florida Benchmarks SC.5.E.5.2 Recognize the major common characteristics of all planets and compare/contrast the properties of inner and outer

More information

Chapter 23: Touring Our Solar System

Chapter 23: Touring Our Solar System Chapter 23: Touring Our Solar System The Sun The is the center of our solar system. The Sun makes up of all the mass of our solar system. The Sun s force holds the planets in their orbits around the Sun.

More information

Illustrate It! You will need to set out colored pencil and markers at this station.

Illustrate It! You will need to set out colored pencil and markers at this station. Kesler Science Station Lab Comets, Meteors, and Asteroids Teacher Directions Explore It! I will spend much of my time at this station making sure that the students are doing the orbits correctly. I have

More information

Smaller Bodies of the Solar System Chapter 2 continued

Smaller Bodies of the Solar System Chapter 2 continued Smaller Bodies of the Solar System Chapter 2 continued Small, rocky (sometimes metallic) bodies with no atmospheres. or planetoids 100,000 numbered and 12,000 named 1-1000 km in size most are small ~ 1

More information

The Solar System. Sun. Rotates and revolves around the Milky Way galaxy at such a slow pace that we do not notice any effects.

The Solar System. Sun. Rotates and revolves around the Milky Way galaxy at such a slow pace that we do not notice any effects. The Solar System Sun Center of the solar system About 150,000,000 km from the Earth An averaged sized, yellow star Spherical in shape due to gravity Made of about ¾ hydrogen and ¼ helium, both of which

More information

Astronomy 3. Earth Movements Seasons The Moon Eclipses Tides Planets Asteroids, Meteors, Comets

Astronomy 3. Earth Movements Seasons The Moon Eclipses Tides Planets Asteroids, Meteors, Comets Astronomy 3 Earth Movements Seasons The Moon Eclipses Tides Planets Asteroids, Meteors, Comets Earth s Movements Orbit- the path in which an object travels around another object in space Revolution the

More information

CHAPTER 11. We continue to Learn a lot about the Solar System by using Space Exploration

CHAPTER 11. We continue to Learn a lot about the Solar System by using Space Exploration CHAPTER 11 We continue to Learn a lot about the Solar System by using Space Exploration Section 11.1 The Sun page 390 -Average sized star -Millions of km away -300,000 more massive then Earth, 99% of all

More information

Origin of the Solar System

Origin of the Solar System Origin of the Solar System and Solar System Debris 1 Debris comets meteoroids asteroids gas dust 2 Asteroids irregular, rocky hunks small in mass and size Ceres - largest, 1000 km in diameter (1/3 Moon)

More information

Mystery Object #1. Mystery Object #2

Mystery Object #1. Mystery Object #2 Mystery Object #1 Diameter (km) 12,756 Revolution Period (Earth days) 150 million km 24 hours/ 1 Earth day 365 days Nitrogen and Oxygen A terrestrial body including iron, oxygen, silicon, magnesium, sulfur,

More information

Galaxies: enormous collections of gases, dust and stars held together by gravity Our galaxy is called the milky way

Galaxies: enormous collections of gases, dust and stars held together by gravity Our galaxy is called the milky way Celestial bodies are all of the natural objects in space ex. stars moons, planets, comets etc. Star: celestial body of hot gas that gives off light and heat the closest star to earth is the sun Planet:

More information

1/13/16. Solar System Formation

1/13/16. Solar System Formation Solar System Formation 1 Your Parents Solar System 21 st Century Solar System 2 The 21 st Century Solar System Sun Terrestrial Planets Asteroid Belt Jovian Planets Kuiper Belt Oort Cloud The Solar System:

More information

Chapter 25 Meteorites, Asteroids, and Comets

Chapter 25 Meteorites, Asteroids, and Comets Chapter 25 Meteorites, Asteroids, and Comets Guidepost In Chapter 19, we began our study of planetary astronomy by asking how our solar system formed. In the five chapters that followed, we surveyed the

More information

Lecture 39. Asteroids/ Minor Planets In "Gap" between Mars and Jupiter: 20,000 observed small objects, 6000 with known orbits:

Lecture 39. Asteroids/ Minor Planets In Gap between Mars and Jupiter: 20,000 observed small objects, 6000 with known orbits: Lecture 39 Interplanetary Matter Asteroids Meteorites Comets Oort Cloud Apr 28, 2006 Astro 100 Lecture 39 1 Asteroids/ Minor Planets In "Gap" between Mars and Jupiter: 20,000 observed small objects, 6000

More information

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts. Chapter 12 Lecture

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts. Chapter 12 Lecture Chapter 12 Lecture The Cosmic Perspective Seventh Edition Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts

More information

STUDENT RESOURCE 1.1 INFORMATION SHEET. Vocabulary

STUDENT RESOURCE 1.1 INFORMATION SHEET. Vocabulary Vocabulary STUDENT RESOURCE 1.1 INFORMATION SHEET asteroids thousands of rocky objects that orbit the Sun Most asteroids orbit in a belt between the orbits of Mars and Jupiter. More than 9, asteroids have

More information

It Might Be a Planet If...

It Might Be a Planet If... It Might Be a Planet If... What is a planet? Until recently, there was no exact definition. There were historically six planets. Uranus, Neptune, and Pluto were discovered after the invention of the telescope.

More information

Pluto is not alone out there

Pluto is not alone out there Reading: Chapter 13, Sect. 13.1-13.4, Chapter 14, Sect. 14.1-14.2 Homework 9 - See course webpage later this week Exam 2 - Tuesday November 2 - in class - Physics 3 and 5 Practice exam, review sheets posted

More information

The Little Things. Today. Rings, meteorites. Asteroids & Comets. Dwarf Planets Events. Homework 5. Due

The Little Things. Today. Rings, meteorites. Asteroids & Comets. Dwarf Planets Events. Homework 5. Due Today The Little Things Rings, meteorites Asteroids & Comets Dwarf Planets Events Homework 5 Due geysers on Triton Rocky Planets versus Icy Moons Rock melts at higher temperatures. Only large rocky planets

More information

Aside from my last lecture: my solar cooker!

Aside from my last lecture: my solar cooker! Aside from my last lecture: my solar cooker! Don t forget to turn in homework. Bring star wheel on Wed! Remember, no class next Monday, Nov 11, Veteran s day Wed Nov 13: second Kitt Peak trip: many more

More information

Rings, asteroids, meteorites. Homework 5 Due. Thanksgiving next week. Final Dec. 20

Rings, asteroids, meteorites. Homework 5 Due. Thanksgiving next week. Final Dec. 20 Today Rings, asteroids, meteorites Events Homework 5 Due Thanksgiving next week Final Dec. 20 2007 Pearson Education Inc., publishing as Pearson Addison-Wesley Saturn s rings Note refraction in atmosphere

More information

1 Solar System Debris and Formation

1 Solar System Debris and Formation 1 Solar System Debris and Formation Chapters 14 and 15 of your textbook Exercises: Do all Review and Discussion and all Conceptual Self-Test 1.1 Solar System Debris Asteroids small rocky bodies Most under

More information

Ch 23 Touring Our Solar System 23.1 The Solar System 23.2 The Terrestrial Planet 23.3 The Outer Planets 23.4 Minor Members of the Solar System

Ch 23 Touring Our Solar System 23.1 The Solar System 23.2 The Terrestrial Planet 23.3 The Outer Planets 23.4 Minor Members of the Solar System Ch 23 Touring Our Solar System 23.1 The Solar System 23.2 The Terrestrial Planet 23.3 The Outer Planets 23.4 Minor Members of the Solar System Ch 23.1 The Solar System Terrestrial planets- Small Rocky

More information

Solar System Debris. Asteroids 11/28/2010. Large rocky debris orbiting the Sun. Ceres, the largest asteroid. Discovering Asteroids

Solar System Debris. Asteroids 11/28/2010. Large rocky debris orbiting the Sun. Ceres, the largest asteroid. Discovering Asteroids Solar System Debris Material leftover from the formation of the Solar System Gives important clues about its origin Composition: Asteroids and Meteoroids: rock and iron Comets: ice and dust The basic building

More information

Astronomy Wed. Oct. 6

Astronomy Wed. Oct. 6 Astronomy 301 - Wed. Oct. 6 Guest lectures, Monday and today: Prof. Harriet Dinerstein Monday: The outer planets & their moons Today: asteroids, comets, & the Kuiper Belt; formation of the Solar System

More information

Science Space Lessons 1-5 Notes

Science Space Lessons 1-5 Notes Science Space Lessons 1-5 Notes The Planets in order from the Sun are: Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune To help us remember, we use the sentence: My Very Excited Mother Just Served

More information

23.1 The Solar System. Orbits of the Planets. Planetary Data The Solar System. Scale of the Planets The Solar System

23.1 The Solar System. Orbits of the Planets. Planetary Data The Solar System. Scale of the Planets The Solar System 23.1 The Solar System Orbits of the Planets The Planets: An Overview The terrestrial planets are planets that are small and rocky Mercury, Venus, Earth, and Mars. The Jovian planets are the huge gas giants

More information

Sun Mercury Venus. Earth Mars Jupiter

Sun Mercury Venus. Earth Mars Jupiter Sun Mercury Venus Earth Mars Jupiter Venus is the hottest planet in our solar system. The thick clouds on Venus hold the heat in. The sun s lights reflect off Venus s clouds making it look like the brightest

More information

Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 23 Touring Our Solar System 23.1 The Solar System The Planets: An Overview The terrestrial planets are planets that are small and rocky Mercury, Venus,

More information

Chapter 25. Meteorites, Asteroids, and Comets

Chapter 25. Meteorites, Asteroids, and Comets Chapter 25 Meteorites, Asteroids, and Comets Guidepost In Chapter 19 you began your study of planetary astronomy by considering evidence about how our solar system formed. In the five chapters that followed

More information

Today. Events. asteroids, meteorites, comets. Homework 5 Due. things that go bump. Thanksgiving next week. Exam III - Dec. 7

Today. Events. asteroids, meteorites, comets. Homework 5 Due. things that go bump. Thanksgiving next week. Exam III - Dec. 7 Today asteroids, meteorites, comets things that go bump Events Homework 5 Due Thanksgiving next week Exam III - Dec. 7 Lots of small asteroids number A few big asteroids apparent brightness Asteroids are

More information

Chapter 9 Remnants of Rock and Ice. Asteroids, Comets, and Pluto

Chapter 9 Remnants of Rock and Ice. Asteroids, Comets, and Pluto Chapter 9 Remnants of Rock and Ice Asteroids, Comets, and Pluto 9.1 Asteroids and Meteorites Our Goals for Learning Why is there an asteroid belt? How are meteorites related to asteroids? Asteroid Facts

More information

Contents of the Solar System

Contents of the Solar System The Solar System Contents of the Solar System Sun Planets 9 known (now: 8) Mercury, Venus, Earth, Mars ( Terrestrials ) Jupiter, Saturn, Uranus, Neptune ( Jovians ) Pluto (a Kuiper Belt object?) Natural

More information

Chapter 23 Earth Science 11

Chapter 23 Earth Science 11 Chapter 23 Earth Science 11 Inner planets: Closest planets to the sun A.k.a. terrestrial planets All have a rocky crust, dense mantle layer, and a very dense core Mercury, Venus, Earth, and Mars Outer

More information

Asteroid/Comet/Meteor Reading Homework Instructions: Read pages and answer the following questions.

Asteroid/Comet/Meteor Reading Homework Instructions: Read pages and answer the following questions. Name Date Block: Due Date: Asteroid/Comet/Meteor Reading Homework Instructions: Read pages 333-358 and answer the following questions. Page 333 1. What are 4 examples of minor bodies in our solar system?

More information

OUR SOLAR SYSTEM. James Martin. Facebook.com/groups/AstroLSSC Twitter.com/AstroLSSC

OUR SOLAR SYSTEM. James Martin. Facebook.com/groups/AstroLSSC Twitter.com/AstroLSSC OUR SOLAR SYSTEM James Martin Facebook.com/groups/AstroLSSC Twitter.com/AstroLSSC It s time for the human race to enter the solar system. -Dan Quayle Structure of the Solar System Our Solar System contains

More information

The Sun. - this is the visible surface of the Sun. The gases here are very still hot, but much cooler than inside about 6,000 C.

The Sun. - this is the visible surface of the Sun. The gases here are very still hot, but much cooler than inside about 6,000 C. Name: The Sun The Sun is an average sized. Earth, Mars, Jupiter and Uranus are. A star is the only object in space that makes its own. This includes and. The sun is about million miles from Earth. This

More information

Chapter 4 The Solar System

Chapter 4 The Solar System Chapter 4 The Solar System Comet Tempel Chapter overview Solar system inhabitants Solar system formation Extrasolar planets Solar system inhabitants Sun Planets Moons Asteroids Comets Meteoroids Kuiper

More information

9.2 - Our Solar System

9.2 - Our Solar System 9.2 - Our Solar System Scientists describe our solar system as the Sun and all the planets and other celestial objects, such as moons, comets, and asteroids, that are held by the Sun s gravity and orbit

More information

Images of Planets 11/18/08. Cassini Movie

Images of Planets 11/18/08. Cassini Movie Announce: Look at Essay 4 for next week Thursday is Einstein Movie Images of Planets Cassini Movie Review of Ch. 9 Ch. 10 Errors in Crab Lab. 11/18/08 Images of Planets Cassini Movie Ch. 9 Questions Second

More information

Exploring Our Solar System

Exploring Our Solar System Exploring Our Solar System Our Solar System What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before column if you agree with the statement

More information

Griffith Observatory Samuel Oschin Planetarium. Griffith Observatory Samuel Oschin Planetarium. Griffith Observatory Samuel Oschin Planetarium

Griffith Observatory Samuel Oschin Planetarium. Griffith Observatory Samuel Oschin Planetarium. Griffith Observatory Samuel Oschin Planetarium Test 04 Chapters 15-20 Limited Copies Are available Griffith Observatory Samuel Oschin Planetarium June 4 th from 8:00 pm - 10:00 pm Covering ALL Tests Slide 1 Slide 2 Griffith Observatory Samuel Oschin

More information

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore meteor

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore meteor Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore meteor shooting star, falling star For the complete encyclopedic

More information

Table of Contents. Space Bits: Outer Space Objects

Table of Contents. Space Bits: Outer Space Objects Table of Contents Space Bits: Outer Space Objects Comet vs. Asteroid * Meteoroid vs. Meteor vs. Meteorite Crazy Craters Around the World * Halley's Comet * What is Pluto? Solar Eclipse vs. Lunar Eclipse

More information

GET-WISE Presentation on Collisions in the Solar System Dr. Jeffrey Morgenthaler

GET-WISE Presentation on Collisions in the Solar System Dr. Jeffrey Morgenthaler When Worlds Collide GET-WISE Presentation on Collisions in the Solar System Dr. Jeffrey Morgenthaler Copyright, 1996 Dale Carnegie & Associates, Inc. Introduction This talk is about impacts between objects

More information

Selected Topics Starry, Starry Night. Exploring the Universe of Science 1

Selected Topics Starry, Starry Night. Exploring the Universe of Science 1 Selected Topics Starry, Starry Night 2015 Exploring the Universe of Science 1 Revolution & Rotation Key concepts: What is the difference between revolution vs. rotation? Describe the basis for day, month,

More information

Asteroids Physical Properties. Solar System Debris. Missions to Asteroids. Types of Asteroids (based on composition)

Asteroids Physical Properties. Solar System Debris. Missions to Asteroids. Types of Asteroids (based on composition) Solar System Debris Asteroids Physical Properties Spacecraft Missions Origin Orbits Risk to Earth Tens to hundreds of km in diameter Comets History Structure Orbits Origin Missions Meteoroids & Meteor

More information

Astronomy Study Guide Answer Key

Astronomy Study Guide Answer Key Astronomy Study Guide Answer Key Section 1: The Universe 1. Cosmology is the study of how the universe is arranged. 2. Identify the type of cosmology a. The sun is the center of the Universe Heliocentric

More information

HNRS 227 Fall 2006 Chapter 13. What is Pluto? What is a Planet? There are two broad categories of planets: Terrestrial and Jovian

HNRS 227 Fall 2006 Chapter 13. What is Pluto? What is a Planet? There are two broad categories of planets: Terrestrial and Jovian Key Points of Chapter 13 HNRS 227 Fall 2006 Chapter 13 The Solar System presented by Prof. Geller 24 October 2006 Planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune Dwarf Planets Pluto,

More information

Comets and Kuiper Belt Objects 4/24/07

Comets and Kuiper Belt Objects 4/24/07 and Kuiper Belt Objects Announcements Reading Assignment -- Chapter 30 quiz today In-class activity and course evaluations on Thursday Public lecture tonight 7:30PM, this room Prof. Alfed McEwan, Mars

More information

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Natures, Orbits, and Impacts. Chapter 12 Review Clickers

The Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Natures, Orbits, and Impacts. Chapter 12 Review Clickers Review Clickers The Cosmic Perspective Seventh Edition Asteroids, Comets, and Dwarf Planets: Their Natures, Orbits, and Impacts Asteroids a) are rocky and small typically the size of a grain of rice or

More information

AST 105. Overview of the Solar System

AST 105. Overview of the Solar System AST 105 Overview of the Solar System Scale of the Solar System Earth Voyager 1, 1991, distance = 4 billion miles Recap: The Solar System in Scale If the Solar System were the size of a football

More information

1 of 5 5/2/2015 5:50 PM

1 of 5 5/2/2015 5:50 PM 1 of 5 5/2/2015 5:50 PM 1. A comet that has a semi-major axis of 100 AU must have a period of about 10 years. 20 years. 100 years. 1000 years. 2. Astronomers believe chondrite meteorites are about 4.6

More information

The Universe in my pocket. The Solar System. Gloria Delgado Inglada. 4 No. 4. Instituto de Astronomía, UNAM, Mexico

The Universe in my pocket. The Solar System. Gloria Delgado Inglada. 4 No. 4. Instituto de Astronomía, UNAM, Mexico The Universe in my pocket The Solar System 4 No. 4 Gloria Delgado Inglada Instituto de Astronomía, UNAM, Mexico 2 The Solar System is composed of the Sun and of all the bodies travelling around it: planets,

More information

11/16/2015. Uranus. Chapter 15. Uranus, Neptune and the Kuiper Belt. The Atmosphere of Uranus. The Motion of Uranus. Cloud Structure of Uranus

11/16/2015. Uranus. Chapter 15. Uranus, Neptune and the Kuiper Belt. The Atmosphere of Uranus. The Motion of Uranus. Cloud Structure of Uranus Uranus Chance discovery by William Herschel in 1781 Chapter 15 Uranus, Neptune and the Kuiper Belt Hershel was scanning the sky for nearby objects with measurable parallax: discovered Uranus as slightly

More information

Astr 1050 Wed., March. 22, 2017

Astr 1050 Wed., March. 22, 2017 Astr 1050 Wed., March. 22, 2017 Today: Chapter 12, Pluto and Debris March 24: Exam #2, Ch. 5-12 (9:00-9:50) March 27: Mastering Astronomy HW Chapter 11 & 12 1 Chapter 12: Meteorites, Asteroids, Comets

More information

Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE Prentice Hall EARTH SCIENCE Tarbuck Lutgens 23.1 The Solar System The Planets: An Overview The terrestrial planets are planets that are small and rocky Mercury, Venus, Earth, and Mars. The Jovian planets

More information

Outline. Pluto s Surface. Last Homework before Exam (HW#4) is due Friday at 11:50am. Nighttime observing has 4 more nights. Check the webpage.

Outline. Pluto s Surface. Last Homework before Exam (HW#4) is due Friday at 11:50am. Nighttime observing has 4 more nights. Check the webpage. Last Homework before Exam (HW#4) is due Friday at 11:50am. Nighttime observing has 4 more nights. Check the webpage. 1 st exam is October 10 th 1 week away! Justin will have an extra office hour Thursday

More information

Dwarf Planets and Other Objects

Dwarf Planets and Other Objects Lesson 4 Dwarf Planets and Other Objects LA.8.2.2.3, SC.8.E.5.1, SC.8.E.5.3, SC.8.E.5.7, SC.8.N.3.1 Skim or scan the heading, boldfaced words, and pictures in the lesson. Identify or predict three facts

More information

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore

Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore Your web browser (Safari 7) is out of date. For more security, comfort and the best experience on this site: Update your browser Ignore METEO RO ID For the complete encyclopedic entry with media resources,

More information

Chapter 29. The Solar System. The Solar System. Section 29.1 Models of the Solar System notes Models of the Solar System

Chapter 29. The Solar System. The Solar System. Section 29.1 Models of the Solar System notes Models of the Solar System The Solar System Chapter 29 The Solar System Section 29.1 Models of the Solar System 29.1 notes Models of the Solar System Geocentric: : Earth-centered model of the solar system. (Everything revolves around

More information

Comets, Meteors, Asteroids, and The Sun

Comets, Meteors, Asteroids, and The Sun Comets, Meteors, Asteroids, and The Sun Template created by Ann Carnevale, Plainville Community Schools, Plainville, CT Comets Meteors Asteroids The Sun $100 $100 $100 $100 $200 $200 $200 $200 $300 $300

More information

Universe Celestial Object Galaxy Solar System

Universe Celestial Object Galaxy Solar System ASTRONOMY Universe- Includes all known matter (everything). Celestial Object Any object outside or above Earth s atmosphere. Galaxy- A large group (billions) of stars (held together by gravity). Our galaxy

More information

Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION

Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION CHAPTER 4 The Solar System Lecture Presentation 4.0 What can be seen with the naked eye? Early astronomers knew about the Sun, Moon, stars, Mercury,

More information

Your task for each planet...

Your task for each planet... Solar System Your task for each planet... Slide 1: What type of planet is it? (either rocky terrestrial world, gas giant or ice giant) What is it made of? Does it have any moons? What is its mass relative

More information

Comets and KBO's. Comets. Halley's Comet. Far outside the orbit of Neptune are an overwhelming number of small icy bodies

Comets and KBO's. Comets. Halley's Comet. Far outside the orbit of Neptune are an overwhelming number of small icy bodies Comets and KBO's Far outside the orbit of Neptune are an overwhelming number of small icy bodies The Kuiper belt is a ring of icy material located in the plane of the Solar System Comets were known and

More information

Universe: everything that exists, including all matter and energy everywhere

Universe: everything that exists, including all matter and energy everywhere WHAT DO YOU KNOW? Universe: everything that exists, including all matter and energy everywhere The study of what is beyond Earth Many years ago, skywatchers took note of patterns in the stars and there

More information

Asteroids, Comets and Meteorites. What is an Asteroid? Asteroids discovered. Asteroid facts. Example Asteroids

Asteroids, Comets and Meteorites. What is an Asteroid? Asteroids discovered. Asteroid facts. Example Asteroids Asteroids, Comets and Meteorites Perseid meteor shower courtesy NASA Eros: courtesy NASA What is an Asteroid? View from 50 km ~1.5 1.5 km Comet McNaught in 2007 by Aberdeen Astronomical Society member

More information

2010 Pearson Education, Inc. MAVEN launch yesterday

2010 Pearson Education, Inc. MAVEN launch yesterday MAVEN launch yesterday Mars Atmosphere and Volatile EvolutioN (MAVEN) How is Mars losing its atmosphere now? How did Mars lose its atmosphere in the past? 1. Determine the role that loss of volatiles to

More information

Asteroids, Comets and Meteorites

Asteroids, Comets and Meteorites Asteroids, Comets and Meteorites Perseid meteor shower courtesy NASA Eros: courtesy NASA Comet McNaught in 2007 by Aberdeen Astronomical Society member Phil Hart, in Melbourne What is an Asteroid? View

More information

Solar System. Eco-Meet Study Guide

Solar System. Eco-Meet Study Guide Solar System Eco-Meet Study Guide Helpful Hints: This study guide will focus on our solar system. The Eco-Meet test may consist of multiple choice, true/false, fill in the blank, matching, identification,

More information

AST 248. Is Pluto a Planet?

AST 248. Is Pluto a Planet? AST 248 Is Pluto a Planet? And what is a planet, anyways? N = N * f s f p n h f l f i f c L/T What is a Star? A star supports stable Hydrogen fusion Upper mass limit: about 120 M above that radiation pressure

More information

~15 GA. (Giga Annum: Billion Years) today

~15 GA. (Giga Annum: Billion Years) today ~15 GA (Giga Annum: Billion Years) today ~ 300,000 years after the Big Bang The first map of the Universe. Not homogeneous. Cosmic microwave background (CMB) anisotropy. First detected by the COBE DMR

More information

Neap Tide. Spring Tide. Maximum Tidal Bulge

Neap Tide. Spring Tide. Maximum Tidal Bulge Earth and Moon General Physical Science Chapter 17 Moons and Small Solar System Bodies Features of the Earth s Moon Second-brightest object in the sky Average distance 240,000 mi 380,000 km Features can

More information

Chapter 11. Meteors, Asteroids and Comets. YT: If a meteor hits the Earth

Chapter 11. Meteors, Asteroids and Comets. YT: If a meteor hits the Earth Chapter 11 Meteors, Asteroids and Comets YT: If a meteor hits the Earth Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Asteroids and Comets Orbiting the

More information