Core Western astrology terms and meanings
Western astrology is built on a small set of foundational terms. Once you understand these, most horoscopes and chart readings become far easier to follow.
Birth chart (natal chart): A birth chart is a circular map of the sky at the exact moment and place you were born. It shows where the Sun, Moon, and planets sat among the twelve zodiac signs and twelve houses. Every personalized astrology reading, including the Western portion of Your Astrology Language Reading, starts from this map.
Sun sign: The zodiac sign the Sun occupied when you were born. This is the sign most people mean when they say "I am a Leo" or "I am a Virgo." It represents your core identity, ego, and life direction. Because the Sun moves about one degree per day, sun sign dates are the familiar ranges printed in every horoscope column.
Moon sign: The zodiac sign the Moon occupied at your birth. Astrologers read the Moon as your emotional nature: how you process feelings, what makes you feel safe, and how you behave in private. The Moon changes signs roughly every two and a half days, so two people born days apart can share a sun sign but have very different moon signs.
Rising sign (ascendant): The zodiac sign that was rising on the eastern horizon at your exact birth time. It describes the face you show the world: first impressions, physical manner, and your instinctive approach to new situations. The rising sign changes about every two hours, which is why accurate birth time matters so much in a full reading.
Planets: In astrology, "planets" include the Sun and Moon plus Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Each one symbolizes a different drive: Mercury rules communication, Venus rules love and money, Mars rules action and desire, and so on.
Zodiac: The zodiac is the belt of twelve 30-degree signs (Aries through Pisces) that the Sun, Moon, and planets appear to travel through over the year. The word comes from the Greek for "circle of little animals."