Across
- 1. Dark patches on the sun's photosphere.
- 4. Spiral arms attached to a straight "bar" that runs through a galaxy
- 5. The brightest star in the constellation Leo
- 7. A high-speed stream of particles that travels outward from holes in the sun's corona and beats upon the earth's upper atmosphere
- 8. The force that resists motion
- 10. A ... is the actual explosion of a star.
- 12. The sun is located ... away from the earth
- 13. Part of the sun visible only during a solar eclipse.
- 15. An area that contains no air
- 20. Hottest region of the sun's atmosphere
- 21. Basic type of galaxy shape
- 22. The cluster with about 40 galaxies in which we find Earth
- 24. The pole star is known as...
- 26. Basic type of galaxy shape
- 27. Large clouds of gas and dust floating around in space
Down
- 2. Streams of gas erupting from the chromosphere and returning in looplike fashion
- 3. Stars that outline a picture in the sky.
- 6. The study of outer space and all that it contains.
- 9. A pair of stars that travel together and rotate around each other as the moon does the earth
- 11. The imaginary line that stretches from pole to pole.
- 14. The brightest star in the night sky is...
- 16. Part of the sun's atmosphere closest to the surface
- 17. The brightest star in the contellation Perseus is...
- 18. The hottest region of the sun.
- 19. Familiar shape within the constellation Ursa Major which contains the pointer stars.
- 23. A star system containing millions to billions of stars
- 25. The closest star to the earth...