Determine how a specific planet's energy influences your target location based on house angularity.
Find this in your birth chart (e.g., Leo 0° = 120°)
Found in "Chart Details" or "Sidereal Time"
Locational Analysis Results
What is Astrocartography?
Astrocartography is a branch of locational astrology that maps your birth chart onto the globe. By identifying where planets were rising, setting, or peaking at the exact moment of your birth, you can discover geographical "power spots" that emphasize specific themes in your life, such as career, love, or personal growth.
How the Angular Lines Work
In astrocartography, the most powerful locations are those where a planet sits on one of the four angles of the chart:
MC (Midheaven): Career, reputation, and public life. Moving to your Sun-MC line often brings professional visibility.
IC (Imum Coeli): Home, roots, and inner peace. A Moon-IC line is excellent for settling down and family.
ASC (Ascendant): Self-expression and physical vitality. Mars-ASC lines can boost energy but may increase conflict.
DSC (Descendant): Partnerships and relationships. Venus-DSC lines are famous for finding significant others.
Practical Example
Imagine your Natal Jupiter is at 180° (0° Libra). You were born with a RAMC of 90°. If you move 30 degrees East, your Midheaven shifts. This calculator determines the "Orb" (mathematical distance) between your planet and the angles at your new destination. An orb of less than 5° suggests a very strong locational influence, while 5-10° is moderate.
How to Use This Calculator
To use this tool, you need your Natal Planet Longitude and your Birth RAMC. Both are found in standard birth chart reports. Enter your target destination's longitude (using positive numbers for East and negative for West) to see if that planet becomes "Angular" in that city.
function calculateAngularity() {
var planetLong = parseFloat(document.getElementById('planetLong').value);
var birthRAMC = parseFloat(document.getElementById('birthRAMC').value);
var targetLong = parseFloat(document.getElementById('targetLong').value);
var birthLong = parseFloat(document.getElementById('birthLong').value);
var resultDiv = document.getElementById('astro-result');
var output = document.getElementById('outputContent');
if (isNaN(planetLong) || isNaN(birthRAMC) || isNaN(targetLong) || isNaN(birthLong)) {
alert("Please fill in all fields with valid numbers.");
return;
}
// Calculate Longitude Shift
var shift = targetLong – birthLong;
// Calculate Target RAMC (Midheaven at new location)
var targetRAMC = (birthRAMC + shift + 360) % 360;
// Calculate the four angles at target location
var mc = targetRAMC;
var ic = (targetRAMC + 180) % 360;
// Simplified Ascendant/Descendant logic for general web tool purposes
// (In reality requires Obliquity of Ecliptic and Latitude, using 90 deg approximation for general orb check)
var asc = (targetRAMC + 90) % 360;
var dsc = (targetRAMC + 270) % 360;
function getOrb(p, angle) {
var diff = Math.abs(p – angle);
return Math.min(diff, 360 – diff);
}
var orbMC = getOrb(planetLong, mc).toFixed(2);
var orbIC = getOrb(planetLong, ic).toFixed(2);
var orbASC = getOrb(planetLong, asc).toFixed(2);
var orbDSC = getOrb(planetLong, dsc).toFixed(2);
var html = "At your target location, the Midheaven (MC) is at approximately " + targetRAMC.toFixed(2) + "°.";
function formatResult(label, orb, meaning) {
var cssClass = "";
var note = "";
if (orb < 5) {
cssClass = "strong-influence";
note = " – Strong Influence!";
} else if (orb < 10) {
cssClass = "moderate-influence";
note = " – Moderate Influence.";
} else {
note = " – Weak/No Influence.";
}
return "
";
}
html += formatResult("Career (MC)", orbMC, "Focuses your planet's energy on public life and professional goals.");
html += formatResult("Home (IC)", orbIC, "Focuses your planet's energy on domestic life, privacy, and foundations.");
html += formatResult("Identity (ASC)", orbASC, "Focuses your planet's energy on your personality and how others see you.");
html += formatResult("Relationship (DSC)", orbDSC, "Focuses your planet's energy on one-on-one partnerships and social life.");
output.innerHTML = html;
resultDiv.style.display = "block";
}