Free astrocartography: your planetary lines map
Using your birth date, time and place, we draw a world map with your 10 planetary lines and tell you which cities sit close to each one.
What astrocartography is
Astrocartography projects your birth chart onto a world map. Instead of looking at which sign each planet falls in, it looks at which place on Earth that planet was touching one of the four angles of the sky at the moment you were born.
The result is ten planets across four angles: up to 40 lines crossing the globe. Where a line passes near a city, astrological tradition associates that area with the energy of that planet, more or less strongly depending on distance.
The four types of line
Each planet generates four lines, one for each angle of the birth chart: Ascendant (AC), Descendant (DC), Midheaven (MC) and Imum Coeli (IC). Each type has a distinct shape on the map and a distinct traditional meaning.
| Line | What it marks | Shape on the map |
|---|---|---|
| AC | The planet was rising on the eastern horizon: how you present and initiate yourself in that place. | Curve that opens toward the poles |
| DC | The planet was setting on the western horizon: who you attract, partnerships and others. | Curve that opens toward the poles |
| MC | The planet was culminating at the highest point of the sky: public life, vocation, recognition. | Straight north-south line (meridian) |
| IC | The planet was at its lowest point, beneath your feet: home, roots, private life. | Straight north-south line (meridian) |
Why the birth time is critical
Astrocartography lines depend directly on the birth time: an hour of error shifts every line on the map by around 15° of longitude, which works out to roughly 1,600 km at the equator.
With an approximate time (for example, just "morning"), the MC and IC lines can still be calculated with a reasonable margin if you at least know the day, but the AC and DC lines, more sensitive to exact minutes, can shift enough to change which city ends up nearby. If you don't have an exact time, we flag it next to the map.
How to read the map
Start by looking for lines passing within 600 km of where you live, or of a place you're curious about: tradition considers these the ones with the most direct influence on that area.
Pay closer attention to Sun, Moon, Venus and Jupiter lines if you're looking for places tradition associates with ease and wellbeing, and to Saturn and Mars lines if you want to spot areas that same tradition describes as more demanding or tense.
A city can sit near several lines at once: in that case, the meanings of each planet and angle combine rather than cancel each other out.
Honest limits
Astrocartography is a symbolic tradition within astrology, not a scientifically verified method for predicting where you'll be happiest or most successful. Treat it as a lens for reflection, not an instruction.
Choosing where to live depends on work, family, money, language, climate and dozens of other factors. No planetary line replaces that decision: at most, it adds one more symbolic layer to weigh alongside everything else.
Frequently asked questions
What does it mean for a line to pass "close" to my city?
On this map, cities within 600 km of a line count as close. The nearer a city sits to the exact line, the more weight astrological tradition gives that planetary meaning in the area.
Can I calculate my astrocartography without a birth time?
You can, but with less precision: the MC and IC lines depend less on the exact time than the AC and DC lines do. Without a time, the map is calculated as an approximation, and we flag that next to the result.
Does a "tense" line mean I shouldn't live there?
No. Saturn or Mars lines are traditionally described as more demanding, but that isn't a warning or a negative prediction. Plenty of people live and thrive in cities crossed by those lines.
Why does my map have up to 40 lines?
That's the 10 planets we use in the chart multiplied by the 4 angles (AC, DC, MC, IC). Not all of them pass near populated areas: the map only highlights the ones with cities nearby.