Across
- 5. Star in the constellation Orion
- 7. revolting around another object
- 8. a peice of carboard with all the constellations on it
- 11. spinning on its own axis
- 14. brightness of star seen at ten parsecs
- 16. a bunch of stars in one huge area
- 18. a group of stars that are named something
- 19. Occurs every four years
- 20. albert______
Down
- 1. Hemisphere north of the equator
- 2. when something is the the furthest away or at its highest
- 3. a ancient structure used to tell time
- 4. sir issac_______
- 6. the galaxy we live in
- 9. the distance light travels in one year
- 10. when the sun reaches it max or min declination
- 12. distance from the center of the earth to the center of the sun
- 13. Jeff Bezos aerospace manufacturer
- 15. what Elon Musk owns
- 17. a bunch of astrological signs