12 Constellations That Inspired the Zodiac — and the Astronomers Who Mapped Them

9. Sagittarius: The Archer

Sagittarius is depicted as a centaur archer aiming towards neighboring Scorpius. Ancient Babylonians and Greeks included Sagittarius in their celestial observations. Ptolemy mapped its bright stars and nebulae in the Almagest. The constellation is notable for containing the galactic center. The European Space Agency explores its features at: www.esa.int/Science_Exploration/Space_Science/Sagittarius_constellation