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Across 3. Collapsed core of a star produced by a supernova 6. Star up to 1.4 Solar masses 7. "M" is the ___ stage of a star 8. Supernova is a(n) _________ of a star that causes a blinding light 10. Rotating neutron star; sends off radio waves 11. Condensed matter that heats up and starts glowing 19. Used to measure the distance of other galaxies 20. Bright central part of a star 22. Old group of tightly clustered stars; sometimes 200 light years in length 24. Has more carbon than oxygen 26. Can only be measured by supreme instruments 28. LBV stage lasts _____ years. (write with numbers) 29. _____ stars can change their brightness

Down 1. Diagram that shows class, temperature, and luminosity of a star 2. Made of hot glowing gas 4. Black Dwarf stars are ___ versions of White Dwarf stars 5. Color of a star is determined by its _____. 9. 3000 _____ ______ are known 12. Short life span; found along the Milky Way band 13. Matter that circles a Black Hole 14. Core contracts when greater than 3 Solar masses 15. Huge, hot, blue star that burns helium 16. Energy produced by a star is cause by ______ . 17. Where a star forms 18. Main Sequence is when a star mature from a _____. 21. Looks like a star, but cannot be 23. Has mass 332, 830 times Earth's 25. Number of stars able to be seen by naked eye (write with numbers) 27. Wolf-Rayet stars have surface temperature of ____ degrees. (write with numbers)