Across
- 3. space and all the matter and energy and it
- 4. The brightness of a star as seen from earth
- 5. A gigantic explosion in which a massive star collapses and throws its outer layers and into space
- 6. The actual brightness of an object such as a star
- 9. A large cloud of gas and dust in interstellar space
- 10. A measure of how bright a star would be if it or seen from a standard distance
- 11. a collection of stars dust and gas bound together by gravity
- 12. The distance that light travels in a year
Down
- 1. all of the Frequencies or wavelengths of electromagnetic radiation
- 2. a small hot dim star that is the left over center of an old sun like star
- 7. A star that collapsed under gravity to the point that the electrons and protons have smashed together
- 8. hertzsprung-Russell diagram a graph that shows the relationship between a stars surface temperature and absolute magnitude