Nuclear
Created by nuclear fission with significantly more U-235 than critical mass
What is an atomic bomb?
What is critical mass?
A large ensemble of stars, all interacting through the gravitational force and orbiting around a common center
What is a galaxy?
Distance from the Earth to our Sun
What is 93 million miles?
A true explosion of a star
Created by out of control nuclear fission but with an amount less than critical mass
What is a meltdown?
The distance light could travel along a straight line in one year
What is a light year?
A small collection of galaxies
What is a local group?
Einstein's equation that relates mass to energy
What is E=mc^2?
Name 3 of the 4 main categories of stars
The process by which a large nucleus is split into smaller nuclei
What is nuclear fission?
Used to split a nucleus in nuclear fission
What is a neutron?
A collection of local groups of galaxies
What is a cluster?
What is 10,000F?
The brightness of a star, corrected for distance
What is absolute magnitude?
The process by which 2 or more small nuclei fuse to make a bigger nucleus
What is nuclear fusion?
Kind of galaxy that is a flat disk with spiral arms which rotate around the center
What is a spiral galaxy?
A collection of galaxy clusters
What is a supercluster?
What is 4?
The brightness of a star as seen in the night sky
What is apparent magnitude?
What is Helium?
Kind of galaxy that is a flat disk, but it has NO spiral arms?
What is a lenticular galaxy?
Kind of galaxy of our Milky Way
What is a spiral galaxy?
This is how many earths would fit into the sun
What is 1,000,000?
Name 3 of the 4 regions of the sun
What are photosphere, convection zone, radiative zone, and core?