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