Low Mass Stars
High Mass Stars
Spectroscopy/ Heat Transfer
H-R Diagrams/ Classifications/ Random
Random
100
Low Mass stars are tend to be (color) and (size).
redder, smaller
100
High mass stars tend to be (color) and (size)
bluer, bigger
100
What do spectrums tell us?
What elements are inside of a star
100
Which star classification (the letters) is the biggest one?
O stars
100
What are stars made of?
Gas and dust, mostly hydrogen and helium
200
What is a supernova and how do they occur?
An explosion, they occur when a star tries and fails to fuse iron.
200
About how long do high mass stars live for?
~10 million years
200
What is the tool used to break light up into a spectrum called?
Diffraction Grating
200
What is the ecliptic?
The path the Sun travels on. The zodiac constellations are all located along it
200
What is the difference between as asterism and a constellation?
Asterisms are only the stars that can be seen with the naked eye, where constellations are all the stars
300
What is a planetary nebula and what is in the center of it?
A white dwarf is in the center, it sheds its outer layers and creates a planetary nebula
300
What is a neutron star?
A star made out of neutrons
300
What are the two ways light can be manipulated? Draw an example for each on the board.
Reflection and Refraction
300
List the star classifications in order from biggest to smallest
O,B,A,F,G,K,M
300
What is the celestial sphere?
An imaginary sphere with all of the stars fixed on it that rotates around the Earth
400
Draw out the stages that a low mass star goes through during its life. (Hint: not how its born or dies, the stuff in between)
Regular -->Red Giant -->Regular -->Red Supergiant
400
Describe the three ways a high mass star can die.
Supernova: destroys it
Neutron Star: Star made of neutrons
Black hole: singularity with infinite density
400
Describe the two ways heat is transferred in stars.
Convection: heat transfers through collisions
Radiation: heat is emitted and absorbed by another atom
400
What can an H-R diagram tell us about a galaxy?
Its age
400
What is a blackbody?
An object that radiates all energies in all directions
500
What elements are inside of a red supergiant?
H, He, C, Ne, O, Si Iron
500
Describe all the steps in the star formation process.
1. Nebula
2. Supernova sends shockwave through nebula
3. Dense regions form in nebula
4. Star forms and begins fusing hydrogen and helium
500
What are the two different types of spectra? How do they each occur?
Emission spectrum: hot gas
Absorption spectrum: hot object shining through a cold gas
500
Draw and label an entire H-R diagram
500
What are the coordinates used to map a star? Draw out a diagram to show how to use them.
Declination and Right Ascension