Across
- 2. a gigantic explosion in which a massive star collapses and throws its outer layers into space
- 4. a large cloud of gas and dust in intercellular space a region or stars are born
- 6. magnitude a measure of how brightest star would be if it were seen from standard distance
- 7. the actual brightness of an object such as a star
- 8. a collection of stars dust and gas bound together by gravity
- 11. star a star that has collapsed under gravity to the point that electrons and protons have smashed together to form neutrons
- 12. space and all other matter and energy in it
Down
- 1. diagram hurtzsprung Russell diagram a graph that shows the relationship between a stars surface temperature and absolute magnitude
- 3. spectrum all of the frequencies or wavelengths of electromagnetic
- 5. year the distance that travels in a year about 9.4 6,000,000,000,000 km
- 9. magnitude the brightness of a star as seen from earth
- 10. door a small hot dim star that is left over center of an old sun like star