What Is a Pattern in the Stars Called?

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A pattern in the stars is called a constellation. According to the Las Cumbres Observatory Global Telescope Network, the sky is divided into 88 official constellation groups. The constellation groups are referred to as asterisms.

In the Northern Hemisphere, the majority of the constellations were named by the ancient Greeks. The majority of the constellations in the Southern Hemisphere were named by 17th century European explorers.

Thirteen constellations travel on the same path as the sun, moon and planets. These constellations are referred to as the stars of the Zodiac. Astrologers use 12 of the 13 signs to make astrological predictions. The 13 signs of the Zodiac are Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Ophiuchus and Sagittarius. Ophiuchus is known as the "13th Sign" and is omitted in astrological predictions.