Across
- 2. the middle part of the sun's atmosphere
- 3. the brightness that a star would have if viewed from 10 parsecs away
- 4. bright, cool stars
- 10. the lowest layer of the sun's atmosphere
- 11. tremendous bursts of energy on the sun
- 13. a 2-D graph that compares stars by their temperature and the amount of light that they produce
- 16. the brightness of a star as it appears to an observer on the earth
- 18. a unit based upon the measurement of stellar parallax
- 19. found in the lower left corner of a H-R diagram
- 20. very large "bubbles" on the suface of the sun
- 22. flamelike columns of gas on the sun
Down
- 1. average stars on a H-R diagram
- 5. the most visible part of the sun
- 6. half of the angle that the star appears to move when viewed from opposite sides of the earth's orbit
- 7. the center of the sun
- 8. streams of dense gas erupting of the sun and returning in a looplike fashion
- 9. "bubbles" on the surface of the sun
- 12. the apparent change in the position of an object that is really caused by the change in the position of the observer
- 14. dark patches causes by cooler spots on the sun's surface
- 15. about 5.9 trillion miles; a unit of measurement that is used in astronomy
- 17. the outermost layer of the sun's atmosphere
- 21. the closest star to earth