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