| A | B |
|---|
| parallax | a method used to determine a stars distance from Earth |
| light-years | units used to measrue distances to stars |
| size, brightness, and temperature | what astronomers use to classify stars |
| blue-white | the color of the hottest stars |
| size and temperature | what determines the brightness of a star |
| H-R Diagram | includes main sequence stars, giants, super giants, and white dwarfs |
| apparent | a stars magnitude as seen from Earth |
| nuclear fusion | starts a new star |
