The word “Horoscope” means “view of the hour” – which is an Astrological Chart as a circular “map” of the positions the Sun, Moon, and Planets in our Solar System as seen from a particular place on Earth for any specific Date and Time. The Earth is the central point. Interestingly the 2 dimensional chart is a good representation because the planets do not vary much from a horizontal plane relationship with one another.
The constellations of the Zodiac
The ecliptic, or the path of the sun as it’s perceived from the revolving Earth, passes through the constellations that formed the Zodiac: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces. Astrologers skip a 13th constellation that also resides on the ecliptic: Ophiuchus.