Unit 1: Vocabulary

An object made by man which orbits the Earth

• Artificial satellite

• Satellite

• Latitude

• GPS

The imaginary line round which a body (e.g. a planet) rotates.

• Axis

• Tilt

• Satellite

• Orbit

A large grouping of stars and their planets

• Orbit

• Galaxy

• Planet

• Earth

Our galaxy, the one which contains the Sun, Earth, etc.

• Milky way

• Our Galaxy

• Water way

• Solar System

The elliptical path of a smaller celestial body around a larger one.

• Orbit

• Axis

• Planet

• Galaxy

A celestial body orbiting a star

• Orbit

• Satellite/Planet

• Axis

• Galaxy

A huge ball of very hot burning gas, such as the Sun.

• Star

• Planet

• Satellite

• Artificial Satellite

The Sun and the celestial bodies that orbit it, planets and their satellites.

• Solar System

• Milky way

• Galaxy

• Satellite

The process of making maps

• Cartography

• Mapping

• Map

• Map projections

A location and navigation system based on satellite information.

• Satellite

• Cartography

• GPS

• Map