How the Natal Chart Calculator Works
The natal chart is a snapshot of the sky at the exact moment of your birth. This calculator determines precise planetary positions using astronomical ephemeris and the geographic coordinates of your birth city.
The Pillars of the Natal Chart
Traditional astrology is founded on three main elements that, combined, create a unique portrait of personality:
The Sun Sign is what we all know as "our zodiac sign." It depends on the position of the Sun at birth and changes around the 21st of each month. It represents your essence, will, and what you aspire to become.
The Moon Sign depends on the Moon's position at birth. The Moon crosses all 12 signs in about 29.5 days. It reveals your emotional world, instinctive reactions, and unconscious needs.
The Ascendant is the zodiac sign rising on the eastern horizon at birth. It changes sign roughly every 2 hours and represents your "social mask" and first impression on others.
The Personal Planets
Beyond the three pillars, the complete natal chart includes Mercury (communication and thought), Venus (love and values), Mars (energy and action), Jupiter (expansion and fortune), and Saturn (discipline and maturity).
The Four Elements
Each sign belongs to one of four elements: Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius), and Water (Cancer, Scorpio, Pisces). The element that appears most often among personal planets indicates the dominant tendency.