Across
- 1. Atomic particle with no electric charge
- 4. The distance travelled by light in a year (2 words no space)
- 5. The identity of a chemical element is determined by the number of ...
- 8. Lower left region of the H-R diagram (2 words no space)
- 10. The farther a galaxy the larger its ...
- 13. Upper right region of the H-R diagram (2 words no space)
- 15. His third law can be used to calculate the mass of Jupiter
- 17. Horizontal axis of H-R diagram
- 19. Can increase your grade (2 words no space)
- 22. The eyepiece is a ...
- 24. Returning of light when passing from one medium into another
- 25. The ability of a telescope to resolve detail
- 27. Science that studies the Universe
- 31. Stars produce ... spectra
- 34. 90% of stars are located here on the H-R diagram (2 words no space)
Down
- 2. The Universe is ...
- 3. Indicator that galaxies are moving away
- 6. Bending of light when passing from one medium into another
- 7. The objective of a refracting telescope
- 9. Equation used to measure speed of galaxies
- 11. The power of a telescope to collect light (2 words no space)
- 12. His law: v=Hd
- 14. Rotational period of the Sun as measured with respect to the stars
- 16. The Pleiades are this type of star cluster
- 18. The magnitude as seen from 10 pc
- 20. The objective of a reflecting telescope
- 21. Unit of measuring astronomical distances
- 23. Rotational period of the Sun as measured with respect to the Earth
- 26. Vertical axis of H-R diagram
- 28. The function of the eyepiece is to ...
- 29. Cooler regions on the surface of the Sun
- 30. Uranium can be ...
- 32. Radioactive element used to determine the Earth’s age
- 33. Stars drift to the ... during the night
- 35. Their number equals number of protons in an atom