Components of The Universe Leah Burgess

2. Electromagnetic waves that are between radio waves and infrared waves in the electromagnetic spectrum
5. Radiation consisting of electric and magnetic waves that travel at the speed of light
7. A galaxy with bulge in the center and very distinct long arms winding around the center
8. A self-luminous celestial body consisting of a mass of gas held together by its own gravity in which the energy is generated by nuclear reactions in its interior
9. Large cloud of gas and dust in interstellar space;the location of star information
10. An object with more then four solar masses squeezed into a ball only 10km across whose gravity is so strong that even light can not escape
11. A representation of an object that is accurate in its proportions to the actual object
12. How fast light travels, 300,000km/sec
14. The luminous celestial body around which the Earth and other planets revolve;composed mainly of hydrogen
16. Rotational center of a huge galaxy such as the Milky Way Galaxy
17. A large grouping of stars in space
18. The transfer of energy through matter or space as electromagnetic waves,such as visible light and infrared waves
20. A unit of length equal to the distance that light travels through space in 1 year
21. Bands of dust that appear as dark ribbons against the bright stars in a galaxy

1. The distance between any two corresponding points that are adjacent on a wave
3. used in astronomy as a standard unit to compare the size of other stars with our sun
4. A plot of surface temperature (color)of stars vs. their luminosity (brightness)
6. Provide us with visible light spectrum,the colors we see
12. The death of a large star by explosion
13. All space and the matter space contains
15. Areas of stars that spread out from the center of a spiral galaxy
19. An instrument that collects light or other electromagnetic radiation and concentrates it for better observation