What is horoscope? what is its uses

What is horoscope?
A forecast of a person's future, typically including delineation of character and circumstances, based on the relative positions of the stars and planets at the time of that person's birth.

   *A short forecast for people born under a particular sign, especially as published in a newspaper or magazine.
 
    *A birth chart.
 

What is its uses?
It can also be calculated for an event, a question, and even a country. Symbols are used to represent planets, signs, and geometric connections called aspects. In most cases, the horoscope in Western astrology is drawn on a circular wheel. 

A horoscope is an astrological chart that is calculated based upon the date,time and place of birth. 
I  think ,  may be it tells our future

This is what a calorimeter is used for simpler ex, to measure calories in food.