Observing the Universe

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Across
  1. 2. way group of galaxy.
  2. 4. the alteration of the original shape of something.
  3. 7. the spatial period of a periodic wave.
  4. 9. spectrum the entire range of radiant energy.
  5. 11. the quantitative property that must be transferred to an object.
Down
  1. 1. an astronomical body orbiting a star or stellar remnant.
  2. 3. the act of interfering, invading, or poaching.
  3. 5. telescope uses a convex lens to concentrate.
  4. 6. telescope uses a curved mirror to concentrate.
  5. 8. type of astronomical object consisting of a luminous spheroid of plasma.
  6. 10. telescope an instrument located in outer space to observe distant planets, galaxies and other astronomical objects.
  7. 12. telescope collects visible light waves.