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