Debris

Question 1

What is Asteroid?

Answer 1

Rocky debris larger than 100 m

Also known as minor planets

Question 2

Where is The Asteroid Belt?

Answer 2

Between the orbits of Mars and Jupiter

Question 3

What are the types of Asteroid?

Answer 3

C-type Asteroids: Rich in carbon
S-type Asteroids: Rocky – made mostly of silicates
M-type Asteroids: Made mostly of iron and nickel

Question 4

What is Comet?

Answer 4

Chunks of ice and dust orbiting the Sun
Dust particles trapped in mixture of water,
methane, ammonia and carbon dioxide ices

Question 5

Origins of Comets?

Answer 5

Kuiper belt and the Oort cloud

Question 6

Detecting techniques for Exoplanets?

Answer 6

Gravitational Microlensing, Transit method, Astronomy, Radial Velocity, Direct Imaging

Question 7

What are Meteoroids?

Answer 7

Small rocky debris orbiting the Sun

Smaller than 100 m

Much more common than asteroids

Question 8

What are Meteors?

Answer 8

Small meteoroids vaporizing in the Earth’s atmosphere

Typically the size of pebbles or smaller

Question 9

What is Meteorite?

Answer 9

A meteoroid that reaches the surface

Question 10

What are five main kinds of meteorite?

Answer 10

Stony (Achondrite) Meteorites
Iron Meteorites
Stony Iron Meteorites
Carbonaceous Chondrite Meteorites: eg:The Allende Meteorite
Planetary Achondrites