The astrological symbol presents a hybrid animal: a goat with a fish tail, an association made by Germanicus in the 1st century AD. Learn about the effects of Sun in 2nd House for Capricorn Ascendant. The fish tail symbolizes the nourishing waters where the being is born to rise to the highest degree of spirituality. It represents the Unicorn with its only protruding horn on the testus, similar to a spear. Also learn about Sun in 3rd House for Capricorn Ascendant.