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Comets and Asteroid

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21 diapositives · 439 Views · Oct 24, 2014

Comets and Asteroid. By: Jowb Borja and Alyanna Sharyce D. Aparilla. asteroids. http:// waitingforison.wordpress.com. What are Asteroids?. rocky - metallic to small to be planets Planetoids ( minorplanets ) leftover material Solar System Asteroid Belt dangerous.

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  1. Comets and Asteroid By: Jowb Borja and AlyannaSharyce D. Aparilla

  2. asteroids http://waitingforison.wordpress.com

  3. What are Asteroids? • rocky-metallic • to small to be planets • Planetoids (minorplanets) • leftover material • Solar System • Asteroid Belt • dangerous

  4. Types of Asteroids (primary) C-TYPE M-TYPE S-TYPE

  5. C-TYPE • Carbonaceous • Common variety • 75% of known asteroids • Much darker en.wikipedia.org

  6. M-TYPE • Moderately bright • Made of nickel-iron • Third most common abyss.uoregon.edu

  7. S-TYPE • Second most common • Moderately bright • Consists of iron-magnesium • Dominant • Inner asteroid belt http://en.wikipedia.org

  8. HOW ARE ASTEROIDS FORMED? • leftovers • formation of solar system • birth of Jupiter • Prevented planetary bodies • from forming • gap between Mars and Jupiter • Causing small objects • collide with each other • fragment into the asteroids seen today.

  9. What Are Comets ? • snowy dirtballs • Inhabit the Oort cloud, • Kuiper Belt • Asteroid Belt

  10. Physical characteristics • Solid nucleus consist • -ice (frozen water) • - dust coated with dark organic material • - ammonia • - carbon dioxide • - carbon monoxide • - methane • Coma • Dust tail • Ion tail

  11. Formation • material left over from formation of planets • solar wind pushed remains into the outer • region • remained to form lumps of frozen gas and dust. • temperature :cold enough

  12. Orbital Characteristics • Elliptical Orbit • Perihelion • Kepler’s Law • Main Belt comets • Short Period comets (periodic comets) • Long Period comets • Single apparition comets • Sun grazers

  13. Main Belt comets Comets in the Asteroid belt

  14. Short period comets (Periodic Comets) • 1 orbit takes 200 yrs or less • originate from kuiper’s belt • active comets dragged by the gravitational • interactions with inner planets

  15. Long Period comets • 1 orbit takes 200 yrs or more • originate from Oort cloud • get slung inward by gravitational pull of passing • stars

  16. Single apparition comets Comets that are not bound to the sun

  17. Sun grazers Comets that smash into the sun

  18. Naming Named after their discoverer

  19. History • Thought to be traveling the earths atmospere • 1577 astronomer Tycho Brahe revealed that comets travels far beyond the moon • Isaac newton • a. comets orbit around the sun • b. predicted it will return again and again

  20. Reference For Comets http://hubblesite.org/reference_desk/faq/answer.php.id=17&cat=solarsystem http://www.space.com/53-comets-formation-discovery-and-exploration.html http://cse.ssl.berkeley.edu/segwayed/lessons/cometstale/images/orbit.gif http://upload.wikimedia.org/wikipedia/commons/2/2b/Tycho_Brahe.JPG http://mrnussbaum.com/images/isaac_newton.jpg http://apod.nasa.gov/apod/image/0903/sungrazer_soho.jpg http://d366w3m5tf0813.cloudfront.net/wp-content/uploads/Oort-Cloud-Don-Davis.jpg http://img.docstoccdn.com/thumb/orig/126651312.png http://spaceplace.nasa.gov/review/ice-dwarf/solar-system-lrg.png

  21. References For Asteroid • http://en.wikipedia.org/wiki/S-type_asteroid • http://en.wikipedia.org/wiki/C-type_asteroid • http://en.wikipedia.org/wiki/M-type_asteroid • http://coolcosmos.ipac.caltech.edu/ask/184-What-are-asteroids- • https://www.kickstarter.com/projects/1614576398/solar-circuit-racing/posts/168785 • http://waitingforison.wordpress.com/updates-september-2013/ • http://abyss.uoregon.edu/~js/ast121/lectures/lec18.html • http://www.theguardian.com/science/2014/feb/17/asteroid-2000-em26-fly-close-earth-potentially-hazardous • http://www.myfreewallpapers.net/starwars/pages/asteroids-ring.shtml • http://quoteko.com/asteroid-impact-fiction.html