Across
- 2. a gigantic explosion in which a massive star collapses and throws its outer layers into space
- 3. star a star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutron
- 4. magnitude a measure of how bright a star would be if it were to seen from standard distance
- 5. the actual brightness of an object such as a star
- 9. the brightness of a star seen from Earth
- 10. a large cloud of gas and dust in a interstellar space; a region where stars are born
- 11. a graph that shows the relationship between a star's surface temperature and absolute magitude
Down
- 1. all of the frequencies or wavelengths of electromagnetic radiation
- 5. the distance that light travels in a year; about 9.46 trillion
- 6. a collection of stars, dust, and gas bound together bu gravity
- 7. dwarf a small hot dim star that is the left over the enter of an old syn like star
- 8. space and all the matter and energy in it