Space Vocabulary

3. Celestial bodies in our solar system, including Earth, that orbits the sun.
4. Determines the fineness of detail a telescope can produce of an object in view.
6. The angle measured clock-wise from north when measuring altitude-azimuth co-ordinates.
11. Locate a celestial body relative to a fixed Earth )as thought the celestial bodies are circling Earth).
16. Another word for earth-centred.
17. The lens through which you view a magnified object using a telescope.
19. A model of the universe that places Earth at the centre with the Sun, moon, and planets revolving around it.

1. To cast back from a surface (mirror for objective).
2. Newton's law states that all objects attract all other objects, and provides an explanation for the planets' elliptical orbits.
5. A figure that looks like a squashed circle; planets in the solar system move in elliptical orbits around the sun.
7. All objects seen in the sky. E.g. Moon, sun, stars, and planets.
8. Make (a ray of light) change direction when it enters at an angle (lens for objective)
9. Angle measured above the horizon in degrees when measuring altitude-azimuth co-ordinates.
10. A set of axes of any kind that is used to describe the positions and motions of things.
12. Another word for ocular lens.
13. The large lens at the front of a telescope.
14. Device used to measure an object's azimuth.
15. A model of the universe that places the Sum at the centre with Earth, the planets and moons revolving around it.
18. Device used to measure the altitude of an object.