logging in or signing up Minor Bodies Rainero Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 292 Category: Entertainment License: All Rights Reserved Like it (2) Dislike it (0) Added: January 16, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Comets, Meteors, and Asteroids: Comets, Meteors, and AsteroidsStructure of a Comet: Structure of a Comet To Sun Ion Tail Dust Tail ComaComet Structure: Comet Structure Nucleus 10 km “Dirty Snowball” Coma Cloud of evaporated ices and ions may be 100,000 km in diameter Tail Always points away from Sun Solar Wind and Radiation PressureThe Oort Cloud: The Oort Cloud In 1950 Jan Oort noticed that no comet has been observed with an orbit that indicates that it came from interstellar space, there is a strong tendency for aphelia of long period comet orbits to lie at a distance of about 50,000 AU, and there is no preferential direction from which comets come. The Oort Cloud: The Oort CloudComet Halley: Comet HalleyBayeaux Tapestry Norman Invasion of 1066: Bayeaux Tapestry Norman Invasion of 1066 Comet Halley 1910: Comet Halley 1910 Pope Callixtus III excommunicated Halley's Comet in 1456 In 1910, charlatans sold "comet pills" OrbitComet Nucleus: Comet NucleusComet of 1577: Comet of 1577Hyakutake: HyakutakeHale-Bopp: Hale-BoppComet West: Comet WestSlide14: The Cause of Meteor Showers P55/Tempel-TuttleWhy After Midnight is Best: Why After Midnight is BestShower Radiant: Shower RadiantSlide17: The 1833 stormSlide18: The 1966 storm1997 Leonids from Orbit: 1997 Leonids from OrbitTwo Showers for Halley: Two Showers for HalleySporadic Meteors: Sporadic MeteorsBarringer’s Crater: Barringer’s Crater An iron meteorite 100 feet across and 70,000 tons slamed into the Earth at about 43,000mph in the Arizona desert near Flagstaff 40,000 years ago. Barringer Crater is 4,100 feet wide and 571 feet deep.Other Impact Craters: Other Impact CratersTunguska, 1908: Tunguska, 1908How Much Damage?: How Much Damage?Asteroids: Asteroids Apollo TrojansIda - Dactyl: Ida - DactylGaspra: GaspraKirkwood Gaps: Kirkwood GapsAsteroids Elsewhere: Asteroids ElsewhereSedna: SednaEnd of Section: End of Section You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Minor Bodies Rainero Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 292 Category: Entertainment License: All Rights Reserved Like it (2) Dislike it (0) Added: January 16, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Comets, Meteors, and Asteroids: Comets, Meteors, and AsteroidsStructure of a Comet: Structure of a Comet To Sun Ion Tail Dust Tail ComaComet Structure: Comet Structure Nucleus 10 km “Dirty Snowball” Coma Cloud of evaporated ices and ions may be 100,000 km in diameter Tail Always points away from Sun Solar Wind and Radiation PressureThe Oort Cloud: The Oort Cloud In 1950 Jan Oort noticed that no comet has been observed with an orbit that indicates that it came from interstellar space, there is a strong tendency for aphelia of long period comet orbits to lie at a distance of about 50,000 AU, and there is no preferential direction from which comets come. The Oort Cloud: The Oort CloudComet Halley: Comet HalleyBayeaux Tapestry Norman Invasion of 1066: Bayeaux Tapestry Norman Invasion of 1066 Comet Halley 1910: Comet Halley 1910 Pope Callixtus III excommunicated Halley's Comet in 1456 In 1910, charlatans sold "comet pills" OrbitComet Nucleus: Comet NucleusComet of 1577: Comet of 1577Hyakutake: HyakutakeHale-Bopp: Hale-BoppComet West: Comet WestSlide14: The Cause of Meteor Showers P55/Tempel-TuttleWhy After Midnight is Best: Why After Midnight is BestShower Radiant: Shower RadiantSlide17: The 1833 stormSlide18: The 1966 storm1997 Leonids from Orbit: 1997 Leonids from OrbitTwo Showers for Halley: Two Showers for HalleySporadic Meteors: Sporadic MeteorsBarringer’s Crater: Barringer’s Crater An iron meteorite 100 feet across and 70,000 tons slamed into the Earth at about 43,000mph in the Arizona desert near Flagstaff 40,000 years ago. Barringer Crater is 4,100 feet wide and 571 feet deep.Other Impact Craters: Other Impact CratersTunguska, 1908: Tunguska, 1908How Much Damage?: How Much Damage?Asteroids: Asteroids Apollo TrojansIda - Dactyl: Ida - DactylGaspra: GaspraKirkwood Gaps: Kirkwood GapsAsteroids Elsewhere: Asteroids ElsewhereSedna: SednaEnd of Section: End of Section