Natal chart lookup
Enter your birth date, time and place. The result lists your big three — Sun, Moon and rising — and Mercury through Pluto by sign, degree and house. Positions come from an ephemeris, independent of any interpretation; each sign links to its explainer.
How it is computed
From the birth instant and the birthplace's coordinates, an astronomical ephemeris gives the apparent ecliptic positions of the Sun, Moon and eight planets; sidereal time, latitude and the obliquity of the ecliptic give the Ascendant and Midheaven. Positions are accurate to arcminutes; the Ascendant moves about 1° every 4 minutes, so its accuracy is bounded by the birth time. Houses are whole-sign: the rising sign is the first house.
Birth time and time zone
Enter the clock time at the birthplace. It is converted to UTC with the birthplace's historical time-zone rules, including past daylight-saving periods (mainland China 1986–1991, Taiwan 1979, and so on). If the birth time is approximate, read the rising sign as a range; the page flags results near a boundary.
FAQ
- Why whole-sign houses?
- Whole-sign houses take the rising sign as the first house and proceed sign by sign. It is the oldest system and needs no spherical trigonometry; quadrant systems such as Placidus fail at high latitudes and differ between programs. This page uses whole-sign only, and says so.
- Different from another site?
- Sun, Moon and planet positions should agree between sources to the degree; when they don't, the usual cause is time-zone or daylight-saving handling. The rising sign is very sensitive to the birth time — a few minutes can change it — so check the time and place entered.
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