comets and asteroid
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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
Types of Asteroids (primary)
M-TYPE S-TYPEC-TYPE
• Carbonaceous• Common variety• 75% of known asteroids• Much darker
C-TYPE
en.wikipedia.org
• Moderately bright• Made of nickel-iron• Third most common
M-TYPE
abyss.uoregon.edu
• Second most common• Moderately bright• Consists of iron-magnesium• Dominant • Inner asteroid belt
S-TYPE
http://en.wikipedia.org
• 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.
HOW ARE ASTEROIDS FORMED?
• snowy dirtballs• Inhabit the Oort cloud, • Kuiper Belt • Asteroid Belt
What Are Comets ?
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
• 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
Formation
Orbital Characteristics
•Elliptical Orbit•Perihelion•Kepler’s Law•Main Belt comets• Short Period comets (periodic comets)• Long Period comets• Single apparition comets• Sun grazers
Main Belt cometsComets in the Asteroid belt
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
Long Period comets
• 1 orbit takes 200 yrs or more• originate from Oort cloud• get slung inward by gravitational pull of passing stars
Single apparition comets
Comets that are not bound to the sun
Sun grazersComets that smash into the sun
Naming
Named after their discoverer
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
Reference For Comets
http://hubblesite.org/reference_desk/faq/answer.php.id=17&cat=solarsystemhttp://www.space.com/53-comets-formation-discovery-and-exploration.htmlhttp://cse.ssl.berkeley.edu/segwayed/lessons/cometstale/images/orbit.gifhttp://upload.wikimedia.org/wikipedia/commons/2/2b/Tycho_Brahe.JPGhttp://mrnussbaum.com/images/isaac_newton.jpghttp://apod.nasa.gov/apod/image/0903/sungrazer_soho.jpghttp://d366w3m5tf0813.cloudfront.net/wp-content/uploads/Oort-Cloud-Don-Davis.jpghttp://img.docstoccdn.com/thumb/orig/126651312.pnghttp://spaceplace.nasa.gov/review/ice-dwarf/solar-system-lrg.png
• 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
References For Asteroid