PPT-Comets, Meteors, and Meteorites

Comets and Their Significance In the past people dreaded comets as omens of human disasters such as wars or famines Today we know that comets are icy members of our solar system that have highly elliptical orbits. In this lesson, we are . going to be comparing comets, meteors, and asteroids which are found . in the Solar System. . Essential Question:. What is the difference between a comet, meteor, . and asteroid?. Unit 4. Appearances of comet Kohoutek (1973), Halley (1986), and Hale-Bopp (1997) caused great concern among superstitious.. Comet Hyakutake in 1996. Throughout history, comets have been considered as portents of doom, even very recently: . Chandra . Wickramasinghe. 1. , . Max K. . Wallis. 1. , . Carl H. Gibson. 2. , Jamie . Wallis. 1. , . Shirwan. Al-Mufti. 1. & . Nori. Miyake. 1 .  . 1 . Cardiff Centre for Astrobiology, Cardiff University, UK.. Asteroids. Composition (what are they made of?. Asteroids are rocky worlds.. Asteroids. Where are asteroids found?. Most asteroids orbit the Sun between Mars and Jupiter.. Asteroids. What are their shapes?. Comets. one of the most glorious things to see in the sky is a comet.. May be visible for only days, weeks, or months. Comet. : chunks of ice and dust whose orbits are very long, narrow ellipses.. Think of them as a “dirty snowball”. In this lesson, we are . going to be comparing comets, meteors, and asteroids which are found . in the Solar System. . Essential Question:. What is the difference between a comet, meteor, . and asteroid?. Information for this PowerPoint obtained from: . NSTA Online Module: Solar System: . Asteroids, Comets, and Meteorites . NASA. ESA. Windows2Universe.org. This is a meteorite that had been broken off of Mars from a large impact meteorite. It spent millions of years in space before landing in Antarctica.. foldable. 6.8 Space Science. Label and color your 3 doors. Fold your paper hamburger style. Cut and label THREE doors, so you will make two lines. Try to make them as even as possible.. 1. Comet. Meteors. Meteorites. Impacts. Meteors, Meteorites and Impacts. I. . Small . Solar System Bodies. Small Solar System Bodies. (SSSB, as defined by the IAU) are objects in the Solar System that are neither . Asteroids. Over 100,000 asteroids.. Vesta is the largest – 330 miles. in diameter.. Size range – 330 miles to about. 100 yards.. Irregular-shaped rocky bodies.. Some asteroids have moon(s).. In this lesson, we are . going to be comparing comets, meteors, and asteroids which are found . in the Solar System. . Essential Question:. What is the difference between a comet, meteor, . and asteroid?. Chapter 20. A loose collection of ice, dust and small rocky particles. Orbits are very long and narrow ellipses. Comprised of 2 parts: Head and Tail. Originate from either Kuiper belt or . Oort. cloud. Hervé Lamy. Belgian Institute for Space Aeronomy. Brussels, Belgium. Meteor forward scattering. Specular reflection. Retrieval of trajectory. The BRAMS network. BEACON. 49.97 MHz. 150 W. Right-handed circularly polarized. It is said that astronomy is one of the few remaining fields in which amateurs can make a real contribution to science, and nowhere is this more true than in the field of meteors and meteorites.Although meteors are isolated and unpredictable, it is possible to predict when meteor showers - usually associated with old comets - are due they last a couple of days, during which many meteors can be observed in a single night. Equipment for watching, counting and even measuring meteors can range from the simplest (a chair) to sophisticated all-sky cameras.What is unique about meteors in astronomical observation is that many survive entry into the Earth\'s atmosphere and impact the ground - the only easily-analysed extraterrestrial material available to science.What is unique about Richard Norton\'s book is that it is both a field guide to observing meteors, and also a field guide to locating, preparing and analysing meteorites. In addition to giving the reader information about observing techniques for meteors, this book also provides a fully detailed account of the types of meteorites, how and where to find them, how to prepare and analyse them. It is thus the only complete book on the subject available at present.