Precision-calculated with the Swiss Ephemeris. AI-powered natal chart analysis: Sun, Moon & Rising signs, planetary aspects, daily transit forecasts.
A natal chart (also called a birth chart) is a map of celestial positions drawn for the exact moment and place of your birth. It records where the Sun, Moon, and eight planets were located in the twelve zodiac signs and twelve houses. Every person's chart is unique — even people born on the same day can have dramatically different charts due to differences in birth time and location. The natal chart is the starting point for all personalized astrology.
Your Sun sign represents your core self and life purpose, determined by your birth date. Your Moon sign reflects your emotional world and inner needs, determined by the Moon's position at birth. Your Rising sign (Ascendant) is the impression you make on others and your outward persona, determined by the exact time and place of birth. Together, these three form the most important personality portrait in astrology.
Beyond the Sun and Moon: Mercury governs communication, Venus rules love and aesthetics, Mars drives action and competition, Jupiter expands opportunity, Saturn imposes responsibility and limits, Uranus sparks revolution, Neptune inspires spirituality and imagination, and Pluto governs transformation. Each planet in a different sign expresses its energy uniquely; each planet in a different house points to a specific life domain. The angular relationships between planets (aspects) — conjunction, opposition, trine, square, sextile — determine whether energy flows harmoniously or creates tension.
The Ascendant changes approximately every 2 hours. A small error in birth time can shift the Rising sign, rearranging the entire house system. If you're unsure of your exact birth time, check your birth certificate or ask your parents. Our calculator also supports an "unknown birth time" mode, which omits the Ascendant and house analysis while still providing accurate Sun and Moon sign placements.
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