Astronomy Vocabulary 1

3. A larger, brighter, red giant.
4. The first layer of the solar atmosphere found above the photosphere.
10. A star of extremely high density and towards the end of its life cycle.
12. A telescope designed to observe radio waves.
13. The arrangement of radiation according to wave length.
15. Only 10% of galaxies, not defined shape, many young stars.
16. Theory that proposes that the universe originated from a single exploding mass.
17. A large, cool star with high brightness.
19. The outer weak layer of a stars atmosphere.
20. Galaxy that spins in a flat disc-like shape with 2 or more arms.
22. A bright archlike structure coming off the sun.
23. A telescope that observes starlight by the use of mirrors.
24. A dark spot on the sun, which is cool by contrast to the rest of the surrounding photosphere.
25. Streams of protons and electrons ejected at high speeds from a star.

1. A telescope that observes starlight by using lenses to bend and focus light.
2. A star whos magnitude falls into the main data line on the HR Diagram.
5. A plot of stars according to their absolute magnitudes and temperatures.
6. States that other galaxies are traveling away from the MilkyWay at a speed that is proportional to their distance.
7. An exploding star that increases in brightness.
8. 60% of galaxies, Round to oval, many older stars.
9. A star that has expended all of its nuclear fuel and is at it's final stage.
11. A collapsing cloud of gas and dust that is developing into a star.
14. Massive stars that have collapsed in on itself with such intense gravity that light cannot escape.
18. The way the sun (stars) produce their energy.
20. The study of properties of light that depend on wavelength.
21. The change in frequency of Radiation waves or sound waves caused by the relative motion of the source from the observer.