Across
- 3. - the study of the movements and relative positions of celestial bodies interpreted as having an influence on human affairs and the natural world.
- 9. - a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
- 10. - the regularly repeated elliptical course of a celestial object or spacecraft about a star or planet.
- 11. - the planet on which we live; the world.
- 12. - a colourless, odourless, highly flammable gas, the chemical element of atomic number 1.
Down
- 1. - a line notionally drawn on the earth equidistant from the poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°.
- 2. - PHYSICS the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
- 4. - an artificial body placed in orbit round the earth or another planet in order to collect information or for communication.
- 5. - relating to the regions around the North Pole.
- 6. - the branch of science which deals with celestial objects, space, and the physical universe as a whole.
- 7. - move in a circle on a central axis.
- 8. - move or cause to move in a circle round an axis or centre