Across
- 3. Spectrum vast arrangements of electromagnetic waves in relation to their wavelengths
- 4. large cloud of dust in intersteller space
- 5. Center rotational center of a huge galaxy such as the
- 6. diagram a plot of the surface temperature (color) of stars vs. their luminosity(brightness)
- 12. all space and the matter space contains
- 14. the distance betwwen any two corresponding points that are adjacent on a wave
- 15. Arms areas of stars that spread out from the center of a spiral galaxy
- 16. the death of a large star by explosion
- 17. Model a representation of an object that is accurate in its proportions to the actual object
- 19. of Light how fast light travels 300,000km/seconds
- 21. Radiation radionation consisting of electronic and magnetic waves that travel at the speed of light
Down
- 1. Galaxy a galaxy that does not fit into any category; a galaxy with very little symmetry
- 2. Hole an object with more than four solar masses squeezes into a ball 10km across whose gravity is so strong that even light can not escape
- 7. Galaxy a galaxy with bulge in the center and very distinct long arms winding around center
- 8. Mass used in astronomy as a standard until to compare the size of other stars with our sun
- 9. a large grouping of stars in space
- 10. Galaxy Galaxy with a central bulge or bar with short arms, if any are present
- 11. waves electronic waves with long wavelengths and low freguencies
- 13. 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 reaction in its interior
- 18. the luminous celestial body around which the earth and other planets revolve; compose mainly of hydrogen and helium
- 20. Lanes bands of dust that appears as dark ribbons against the bright stars a galaxy
- 22. Way Galaxy the huge grouping of stars that rotate around a center of which the sun and the solar system are a part