Final answer:
A horoscope is a chart that astrologers use to depict the positions of the Sun, Moon, and planets when a person is born, which is believed to influence the individual's traits and life. Astrology is considered a pseudoscience, with no evidence to support its principles.
Step-by-step explanation:
The horoscope is a chart used by astrologers that shows the positions along the zodiac and in the sky of the Sun, Moon, and planets at the specific time of an individual's birth, as seen from a particular place on Earth. This practice, which is part of natal astrology, is based on the belief that these planetary positions at birth influence a person's personality and future. However, it is important to note that astrology has been regarded as a pseudoscience, as there are no known forces, including gravity, that could logically explain these influences. Astrological charts are divided into 12 zodiac signs, each named after constellations and occupying a 30° segment of the sky. Ptolemy's Tetrabiblos, an ancient text on astrology, established many of the interpretations used in creating and reading horoscopes, although today's understanding of human genetics and the physical nature of planets greatly undermines the credibility of astrological claims.