What does a stars color depend on? It’s temperature What color are the hottest stars? Blue What does the H-R Diagram show about a star? The temperature and absolute magnitude What is formed from the materials in the core of a supernova? Black holes and neutron stars What is a stars life cycle from earliest to oldest? Main sequence, red giant, white dwarf

Where are globular clusters found? Spiral and slliptical galaxies Where are open clusters found? Along the spiral disks of galaxies Why are distant galaxies studied? To learn what early galaxies looked like What do scientists think will happen to the universe? It will continue expanding What type of galaxy is the Milky Way? Spiral What are the three major types of galaxies? Spiral, elliptical, and irregular

What type of star has used all of its hydrogen and is the leftover center of an older star? White dwarf What holds a galaxy together? Gravity How do astronomers classify galaxies? According to their shape The H-R Diagram graphs what two things? A stars temperature and brightness What is a nebula? A large cloud of dust and gas

What is a white dwarf? The former center of an old star What is a supernova? A huge explosion where a large star dies What is a black hole? A huge object that light cannot escape from What is a pulsar star? A spinning neutron star that gives off pulses of energy