Space Physics Flashcards
Protostar.
A large cloud formed by other clouds that are pulled together by their own gravitational attraction.
Main sequence stars.
Stars that radiate energy because of hydrogen fusion in the core.
What type of radiation flows out of the core of the main sequence star steadily?
gamma.
Red giant.
Stars about the size of the sun cool down and turn red.
White dwarf.
Hot, dense, white star much smaller than it red giant.
Black dwarf.
A star that has faded out and go cold.
Red supergiant.
Stars bigger than the sun.
Supernova.
When a star collapses the surrounding matter compresses the core. This compression reverses suddenly in an explosion that is a supernova.
Neutron star.
A compressed core of a star after a supernova.
Black hole.
What a massive neutron star becomes.
Nebula.
Cloud of dust and gas.
What is the moon?
Natural satellite.
Centripetal force.
The force needed to keep an object moving in a circle.
Red-shift.
Increase in wavelength of light from distant galaxies.
