Across
- 1. the distance from one point on a wave to a corresponding point
- 3. Magnitude one of the most basic observable properties of a star is how bright it appears
- 8. groups of stars
- 9. power of brightness
Down
- 2. Diagram a graph which shows absolute magnitude being plotted on a vertical axis and temp
- 4. apparent shift in position cause by the motion of the observer
- 5. Magnitude system of brightness
- 6. a larger unit than a light year
- 7. Stars when only two stars are gravitationally bound together and orbit a common center of mass
- 10. Sequence holds roughly 90% of the stars in the galaxy