Astrocartography
Where on Earth each planet in your birth chart was rising, culminating, setting or at the lowest point. The map is free; Urania's reading of a place is Enhanced.
Enter a birth date, time and place, then choose Map my chart to draw your planetary lines.
What this page answers
Astrocartography maps where each natal planet was angular—rising, culminating, setting, or anti-culminating—across the Earth at the recorded birth instant. The interactive map is free; Moira Enhanced adds Urania's reading of a chosen place using its nearest natal lines.
Method, limits & sources
- Method
- The map uses the entered birth instant and place to compute in-mundo angular geometry and planetary lines. The same instant can also be recast as a relocation chart for a selected destination.
- Important limit
- Planetary-line meanings and proximity bands are astrological conventions, not scientifically established geographic effects or guarantees about relationships, health, safety, or outcomes. Birth-time uncertainty moves angular lines.
- Provenance
- The page separates calculated line geometry from interpretation and links the result back to Moira's chart, validation, and relocation context.
How astrocartography works
Pioneered by the American astrologer Jim Lewis in the late 1970s, astrocartography (A*C*G) maps the natal horoscope onto the globe. At the moment of birth every planet occupied a specific place in the sky; astrocartography traces across the Earth the lines where each planet was rising, culminating, setting, or at the lowest point below the horizon.
Ascendant (ASC) lines
Rising horizonWhere a planet was crossing the eastern horizon at birth. Astrologers commonly associate ASC lines with presentation, initiative, and embodied experience; this is an interpretive convention rather than a guaranteed effect of travel.
Midheaven (MC) lines
Zenith / south meridianWhere a planet reached its upper meridian. Astrologers commonly associate MC lines with vocation, visibility, authority, and public roles; they do not guarantee professional outcomes.
Descendant (DSC) lines
Setting horizonWhere a planet was setting beneath the western horizon. Astrologers commonly associate DSC lines with one-to-one relationships, collaboration, and projection; they do not identify a soulmate or determine a partnership outcome.
Imum Coeli (IC) lines
Nadir / midnight axisWhere a planet reached its lower meridian. Astrologers commonly associate IC lines with home, roots, privacy, and belonging.
In-mundo lines, not ecliptic approximations
Many consumer astrology apps project planetary longitudes straight onto the map, which ignores each planet's celestial latitude. Moira computes the lines from the planets' true positions:
- In-mundo geometry
- Planets with high celestial latitudes (Pluto up to 17°, Venus up to 8.7°) do not cross the local horizon at their ecliptic degree. Moira calculates the actual horizon crossing in three dimensions.
- The horizon
- Rising and setting lines are drawn for the horizon as it is actually seen, allowing for the bending of light by the atmosphere (refraction), the same horizon Moira uses to find parans.
- Geodetic lines
- Geodetic astrology fixes the zodiac on the Earth, with 0° Aries at Greenwich, so every place has its own Midheaven and Ascendant whatever the time. A planet's geodetic line is the meridian whose geodetic Midheaven is that planet's degree.
- Parans
- Where two planets' angle lines cross, they form a paran. Its influence is traditionally read along the whole circle of latitude through that crossing.
- Relocation charts
- The map shows closeness to angular lines across the whole planet; a relocation chart recasts the same birth moment for one chosen place, with that place's houses.
Questions
How far from a line does it still count?
There is no single established radius of influence. Astrological schools use different distances, and map scale, line type, parans, relocation houses and birth-time uncertainty all change a reading. Treat distance as a stated interpretive choice, not a physical boundary.
Can the harder lines (Saturn, Mars, Pluto) be lived with?
Yes. Locational astrologers do not speak of “bad” lines. A Saturn line can suit disciplined study or building something to last; a Mars line physical drive and enterprise; a Pluto line deep psychological work.
Why does astrocartography need an exact birth time?
The Earth turns about one degree every four minutes, so angular lines are time-sensitive. How far a line moves is not one fixed figure: it depends on latitude, the line, the planet and the angle. Use the best recorded birth time, and treat close calls between nearby lines as uncertain when the time is not precise.