Across
- 3. causes strong gravitational force from a neutron star
- 4. Supermassive black hole is at the _____ of every galaxy
- 6. Who discovered planets travel in ellipses?
- 8. Milky Way has a _______ of 100,000 lightyears
- 9. famous asterism
- 11. the north star
- 13. caused by rotation of the Earth
- 14. point of sky directly above you
- 16. wavelengths of light traveling through space are lengthened to produce an effect known as the
- 17. Sun's location in Milky Way
- 19. former planet now a dwarf planet
Down
- 1. "lighthouse" appearing star
- 2. created by the compaction of a large amount of mass into a very small space
- 5. This type of star is about the size of a U.S. city and a mass of about 2 solar masses.
- 7. The major visible components of the universe
- 10. When astronomers are looking at objects that are very far away in the universe, they are looking at the
- 12. Since all stars are born with the same basic composition, what characteristic most determines how they will differ?
- 13. Milky Way Galaxy is a ______ galaxy
- 15. the distance from the Earth to the sun
- 18. most volcanically active body in the solar system