Across
- 2. a collection of stars, dust and gas bound together by gravity
- 4. a gigantic explosion in which a massive star collapses
- 7. a small hot dim star that is the left over center of a star
- 9. all of the frequencies or wavelengths of electromagnetic radiation
- 10. a measure of how a star would be if it were seen from a standard distance
- 11. graph that shows the relationship between a stars surface tempature and absolute magnitude
- 12. space and all matter and energy in it
Down
- 1. the distance light travels in a year
- 3. the brightness of a star as seen on earth
- 5. a star that has collapsed under gravity
- 6. the actual brightness of an object
- 8. a large cloud of gas and dust in interstellar space