Observing the Universe

123456789101112131415
Across
  1. 3. all what in space.
  2. 4. the entire range of radiant energy.
  3. 9. use a convex lens to concentrate.
  4. 11. the alteration of the original shape of something.
  5. 13. the spatial period of a periodic wave.
  6. 14. an instrument located in outer space to observe distant planets, galaxies and other astronomical objects.
  7. 15. collect visible light waves.
Down
  1. 1. an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation.
  2. 2. the close star to earth.
  3. 5. quantitative property that must be transferred to an object.
  4. 6. use a curved mirror to concentrate.
  5. 7. a group of galaxy.
  6. 8. type of astronomical object consisting of a luminous spheroid of plasma.
  7. 10. an astronomical body orbiting a star or stellar remnant.
  8. 12. the act of interfering, invading, or poaching.