Meanings
A huge cloud of dust and gas.
What is a nebula?
The last stage of a common main sequence star's life.
What is a white dwarf/black dwarf?
Most stars belong to this group on the HR diagram.
What is the main sequence category?
All stars begin with these two elements
Hydrogen and Helium
The highest frequency waves on the electromagnetic spectrum
Gamma Rays
What are stars on the HR diagram arranged by?
What is temperature and luminosity(brightness)?
The remains of a high mass star
What is a black hole or neutron star
On the HR diagram, this group of stars are very hot but have a low luminosity
What are white dwarfs?
What decides the path a star will take in it's life cycle?
mass
On the HR diagram, the sun is this color.
What is yellow?
The higher a star is on the HR diagram, the _____________ it is.
Brighter
The stage immediately after a Red Giant.
What is a planetary nebula
The coolest stars are this color on the HR diagram.
What is color red?
White dwarfs become this when they die
What is a black dwarf
Radio waves
A massive star exploding.
What is a supernova?
the earliest stage of a star's life that forms in the nebula
What is a protostar?
This group of stars have high luminosity but cool temperatures.
What are red super giants?
Heat and light build in the core of the protostar until this takes place.
What is nuclear fusion?
The middle of the electromagnetic spectrum, between ultraviolet and infrared.
What is Visible light?
The MOST massive stars will become this celestial object that is so massive, even light cannot escape.
What is BLACK HOLE?
Increases from right to left on the HR diagram
Temperature
The hottest stars on the HR diagram are in this diverse group.
Main sequence
Kelvins
What are the colors of the stars in order from hottest to coolest?
blue, white, yellow, red-orange, red