Observing the Universe

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