Your "big three" refer to your sun, moon, and rising (or ascendant) placements on your natal chart. Your natal chart is where the planets, moon, and sun were aligned in the sky at the time, date, and location of your birth. Plugging this information into a free calculator will tell you your natal chart in seconds. The results include your sun sign, moon sign, and rising sign. The signs of the Zodiac are: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces. Your sun sign indicates what part of the solar system was near you at birth: Sun, Moon, or Earth. It also describes how you process information through your mind, such as thinking only with your head or body. Your moon sign describes how you react to emotions, such as loving feelings or destructive rage. Your rising sign tells what time it is now in relation to sunrise or sunset. For example, if sunrise is at 6:00 a.m. and your rising sign is Aries, then it is early in the morning. Your sun sign influences many aspects of your life: your physical appearance, how you think, what interests you, where you live, who works with you, etc.