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astrology vs astronomy

Astrology (n) The study of the movements and positions of the sun, moon, planets and stars, and the skill of describing the expected effect that some people believe these have on the character and behaviour of humans.

For example: I always look at my horoscope in the newspaper, but I don't really believe in astrology.

Astronomy (n) The scientific study of the universe and of objects which exist naturally in space, such as the moon, the sun, planets and stars.

For example: The Sky at Night is a monthly television programme on astronomy produced by the BBC.