Across
- 1. Used in astronomy as a standard unit to compare the size of other stars with our sun
- 3. A galaxy that does not fit into any category a galaxy with very little summary
- 4. Electromagnetic waves with long wavelengths and low frequencies
- 5. A galaxy with a bright center and very little dust and gas
- 6. A representation of an object that is accurate in its proportions to the actual object
- 9. The huge grouping of stars that rotate around a center of which the Sun and the solar system are a part
- 10. Galaxy with a central bulge or bar with short arms, if any are present
- 12. A plot of the surface temperature (color) of star vs. their luminosity (brightness)
- 16. Vast arrangement of electromagnetic waves in relation to their wavelengths
- 18. Electromagnetic waves with longer wavelengths than visible light
- 21. All space and the matter space contains
Down
- 1. Area of stars that spread out from the center of a spiral galaxy
- 2. How fast light travels, 300,000km/sec
- 5. Radiation consisting of electric and magnetic waves hat travel at the speed of light
- 7. A large grouping of stars in peace
- 8. Rotational center of a huge galaxy such as the milky way galaxy
- 11. Provide us with visible light spectrum, the colors we see
- 13. A galaxy with bulge in the center and very distinct long arms winding around the center
- 14. Bands of dust that appear as dark ribbons against the bright stars in a galaxy
- 15. Large cloud of gas and dust in interstellar space;the location of star information
- 17. Electromagnetic waves that are between radio waves in the electromagnetic spectrum
- 19. The distance between any two corresponding points that are adjacent on a wave
- 20. The death of a large star by explosion