Across
- 4. vast arrangement of electromagnetic waves in relation to their wavelengths
- 6. the huge grouping of stars
- 7. a galaxy with bulge in the center and very distinct long arm winding around the center
- 9. electromagnetic waves with long low frequencies
- 10. large cloud of gas and dust in interstellar space
- 12. the death of a large star by explosion
- 13. electromagnetic waves with longer wavelengths than visible light
- 15. a galaxy with a bright center and very little dust or gas
- 18. provide us with visible light
- 19. bands of dust that appear as dark ribbons
- 20. a galaxy that does not fit into any category
- 22. a large grouping of stars in space
- 25. galaxy with a central bulge or bar with short arms if any are present
Down
- 1. used in astronomy as a standard unit to compare the size of other stars with our sun
- 2. radiation consisting of electric and magnetic waves
- 3. a plot of the surface temperature (color)of stars
- 5. electromagnetic waves that are between radio waves and infrared waves in the electromagnetic spectrum
- 8. a self luminous celestial body consisting of a mass of gas held together by gravity
- 11. rotational center of a huge galaxy such as the milky way
- 14. the luminous celestial body around which the earth and other revolve
- 16. the transfer of energy through matter or space as electromagnetic waves such as visible light waves
- 17. an object with more than four solar masses squeezed into a ball
- 21. a representation of an object that is accurate in its proportions to the actual object
- 23. the distance between any two corresponding points that are adjacent on a wave
- 24. areas of stars that spread out from the center of a spiral galaxy
- 26. all space and the matter space contains
- 27. how fast light travels