Astrocartography is an astrological technique that maps where celestial bodies were rising, setting or crossing the upper and lower meridians at the instant of your birth. Lines are labelled with the body and the corresponding angle, such as Venus on the Descendant or Jupiter on the Midheaven.
People often turn to this map when exploring a trip or a move. Before choosing a destination, it helps to understand what the drawing shows. The positions of the lines can be calculated; their associations with love, work or belonging are astrological interpretations, not guarantees of events.
What the lines actually represent
Picture the sky at one instant, seen from different places on Earth. A celestial body can be appearing on the horizon in one place while occupying another position in the sky elsewhere. Astrocartography records these differences in perspective on a geographical map.
Chris Brennan and Helena Woods' explanation presents this system of lines, popularised by Jim Lewis, as a visual way to study angularity. The term refers to the relationship between celestial bodies and the four angles used in chart interpretation: the Ascendant, Descendant, Midheaven and Imum Coeli.
The birth chart remains the reference point. A Venus line is interpreted in the context of that chart's Venus, including its relationships with other points. The geographical drawing alone does not contain all that information.
How to read AC, DC, MC and IC
Start with the software's legend. Alongside the symbol for the celestial body, each line has an abbreviation identifying its angle. Some systems use ASC and DSC instead of AC and DC.
- AC, Ascendant: the line where the body was rising on the horizon. Symbolically, it relates to how you present yourself, act and take up space.
- DC, Descendant: the setting line. Interpretation focuses on encounters, partnerships and relationships with other people.
- MC, Midheaven: the line of upper meridian passage. Common themes include public life, work and visibility.
- IC, Imum Coeli: the line of lower meridian passage. The reading centres on home, private life and feeling rooted.
To get to know these points better, start with the Ascendant and the Midheaven. Their individual meanings help explain why two lines of the same body may receive different interpretations.
Line colour has no universal meaning. A red line need not be “bad”, nor a green line “good”. Always check the legend before interpreting it.
Read the planet and angle together
“My Venus line runs close to this city” is still incomplete information. Which Venus line? On the Descendant, a reading might raise questions about connection and getting along with others. On the Midheaven, it might explore professional relationships, creative work or your public presentation.
A Jupiter line on the Midheaven is often associated, within this symbolic language, with growth and visibility. For someone considering studying abroad, it might prompt reflection on learning and career direction. The quality of the course, recognition of the qualification and working conditions still require their own research.
Similarly, a Saturn line does not make a city off-limits. Its symbolism might raise questions about responsibility and structure without predicting loneliness or suffering. Turning a planet's name into a rating for a destination makes the reading less useful and can add unnecessary anxiety.
Which information should you check?
An individual reading requires a reliable birth date, time and location. Check that the software has correctly identified the city, time zone and any daylight-saving rules in effect at the time. The lines depend on the instant used; an approximate time can shift them.
If you only know you were born “in the morning”, choosing a random time creates precision that the data cannot support. Our guide to a birth chart without a birth time explains what remains possible and what becomes uncertain. When comparing lines between cities, that uncertainty matters a great deal.
Check the map settings too. Some methods use the body's physical position in the sky, known as in mundo, while others project its position onto the zodiac. The lines can differ, particularly the horizon lines. Brennan and Moses Siregar's technical discussion explains the distinction. A difference between programs calls for a check of the method before assuming an error.
Astrocartography and a relocated chart: what is the difference?
Astrocartography displays lines on a geographical map. A relocated chart shows an astrological wheel calculated for a particular location while preserving the instant of birth. Its angles and houses may change; in a geocentric calculation, the bodies' zodiacal positions remain the same.
Preserving the instant requires attention to time zones. Copying the same clock time into a city in another time zone can create a chart for a different moment. A dedicated relocation function should keep the UTC instant and recalculate the local perspective; when entering the data manually, the conversion may even change the calendar date.
The two tools complement each other. The geographical map helps you locate lines; the relocated chart provides further information for reading that city. Neither erases your birth chart or proves that your personality will change when you cross a border.
Bringing this curiosity into a real decision
Start with a concrete question: are you looking for more social contact, a course, a quieter routine or another work opportunity? Then separate the symbolic exploration from your research about the place.
Before considering a move, check your budget, housing, documentation, language, safety, healthcare and support network. If possible, a short stay helps you get to know transport and daily routines, although it cannot fully reproduce the experience of living there.
You do not need to live exactly on a line to enjoy a destination. Astrologers use different criteria for proximity; a radius in kilometres should not be treated as a proven boundary between success and failure. Having no nearby lines does not make a city irrelevant to you either.
In short
Read each line as a combination of celestial body and angle, calculated for the instant of birth. Check the data and method before comparing maps or cities.
In everyday life: choose a destination that already interests you and write down what you hope to find there. Investigate those conditions in the real world before treating a line as your answer.
Worth noticing: if an interpretation makes you afraid of where you live or feel obliged to travel to be happy, question that conclusion. Your life in a city involves far more than the drawing on a map.
To start with your birth chart, explore your free First Portrait at Seleune. This introductory reading is different from an astrocartography study.