Across
- 2. Greek astronomer
- 3. mass stars lives for 100 billion years and burns out
- 8. model theory that the Sun is the centre of the universe
- 11. rotation 23.5°
- 14. small debris moving in solar system
- 16. moon when the whole planet is lit
- 18. when the sun reaches its highest/lowest point in the sky at noon
- 21. a star in early stages
- 22. scientific position that requires studying celestial bodies
- 24. matter matter that exists between the star system in a galaxy
- 29. diagram devised by two scientists
- 30. Major constellation best seen in the month of April
- 31. stars remanents of a supernova that could cause a black hole
- 32. interplanetery debris that burns up
- 33. telescope to detect celestial bodies and track heat
- 34. 1600's German mathematican
- 36. Italian astronomer
- 38. model theory that Earth was the centre of the universe
Down
- 1. eclipse sun is obscured by the moon
- 2. when gas and dust start forming to create a star
- 4. a star that explodes
- 5. mass stars lives for 7 billion years, explodes when it dies
- 6. shadow of the Moon or Sun during an eclipse
- 7. dwarf cools down immensely so it's invisible
- 9. groupings of stars that look like familiar patterns
- 10. partial shading of a planet during an eclipse
- 12. dwarf when a low mass star loses its nuclear fuel
- 13. 1500's Polish astronomer
- 15. effect a small wave of frequency that shifts
- 17. phase when the lit portion of the Moon orbits around Earth
- 19. two hydrogen atoms that fuse to create helium
- 20. a group of lights that shine in the sky
- 23. mass lives for 10 billion years, size of the sun
- 25. dwarf small, old, cool star
- 26. eclipse moon looks darkened due to Earth's shadow
- 27. moving towards Earth
- 28. moon when the whole planet is partially lit
- 35. Dipper seven stars under the Ursa Major
- 37. tilt angle between a planet's rotational axis