Stars
What type of star is our sun?
Main sequence star
Comets are made of...
dust and ice
What are metors?
Asteroids that have entered earth's atmosphere and begin to burn up
What are asteroids?
small rocky objects that orbit the sun
What is the largest type of star
supergiant star
What occurs in a main sequence star that makes it a main sequence star?
Fusion
Comets orbits are different than other objects because...
their orbits are highly elliptical
How many different types of meteors are there?
three
Is pluto an asteroid?
Where do meteors come from?
Asteroids
What is the diagram used to characterize stars based on their brightness and temperatures?
H-R Diagram
Where do comets come from?
Oort cloud
What layer of the atmosphere do meteors burn up in?
mesosphere
What was the double asteroid redirection test mission?
To test redirection technology on a near earth asteroid.
What are meteorites called that are primarily metal?
iron meteorites
What is the beginning step in a stars lifecycle?
Protostar
What is the process called when a solid goes straight to a gas state?
sublimation
When do meteors turn into meteorites?
When they make contact with earth's surface
What is the most common type of asteroid?
C-Type, or carbonaceous
What is luminosity
brightness
What are the 8 types of stars?
1) Protostar (3) Supergiant star
2. T Tauri Star (4) Neutron Star
3. Main sequence star (5) Red Dwarf
4. Red Giant (6) White Dwarf
What are the two types of tails found in a comet?
gas tail and dust tail
What type of meteor is composed mainly of silicate minerals?
stony meteorite
Where are the three main places in the solar system where asteroids can be found?
Near Earth Asteroids
Trojan Asteroids
Main Asteroid Belt
What are stars composed of? Give the percentages
75% hydrogen 25% helium