Chapter 2: Stars, Galaxies and The Big Bang

3. a very luminous, star like object that generates energy at a high rate. Thought to be the most distance objects in the universe
4. the theory that states that the universe began at a single point with a tremendous explosion.
7. the apparent shift in the position of an object when viewed from different locations.
9. the brightness of a star as seen from earth.
12. a rapidly spinning neutron star
14. the band of color produced when light passes through a prism.
15. a small hot dim star that is the left over center of a collapsed star.
16. a large red star that is late in its lifecycle.
17. a tight group of stars that looks like a ball and contains up to 1 million stars.
18. a graph that shows the relationship between a star's surface temperature and absolute magnitude.
19. an object so massive and dense that not even light can escape.

1. the kind of galaxy that is the same as the Milky Way.
2. the brightness of a stare if it were 32.6 light years from earth.
5. an explosion in which a massive star collapses.
6. a group of stars that are close together
8. a large cloud of dust and gas in interstellar space; a region in space where stars are born or where stars explode at the end of their lives.
10. the phase in which a star spends most of its life. Its in the middle of the HR diagram.
11. a galaxy that contains old stars and are very bright with little dust.
13. a star that has collapsed under gravity to the point that the electrons and protons have formed neutrons.