Enter your birth details to generate your astrological birth chart.
Your Astrological Snapshot
Please enter your details to begin.
Understanding Your Birth Chart
Your birth chart, also known as a natal chart, is a snapshot of the cosmos at the exact moment and location of your birth. It's a powerful tool in astrology, offering insights into your personality, potential, challenges, and life path. The chart is typically represented as a circular diagram divided into twelve sections called 'houses', with planets placed within these houses and zodiac signs.
Key Components and Their Significance:
The Ascendant (Rising Sign): This is the zodiac sign that was rising on the eastern horizon at the time of your birth. It represents your outward personality, how you appear to others, and your initial approach to life.
The Sun Sign: Your familiar zodiac sign, determined by the Sun's position at your birth. It represents your core identity, ego, and fundamental life force.
The Moon Sign: Indicates the Moon's position at your birth. It governs your emotions, subconscious, inner needs, and instinctive reactions.
The Midheaven (MC): The highest point in the chart, representing your career, public image, and life direction.
Planets: The Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Each planet signifies different energies and functions in your life. Their placement in signs and houses is crucial.
Houses: The twelve houses represent different areas of life, such as self, possessions, communication, home, creativity, health, relationships, transformation, spirituality, career, friendships, and subconscious.
Aspects: The angular relationships between planets in the chart. These aspects indicate how different energies interact, creating harmonious or challenging dynamics.
How the Calculator Works (Simplified):
Generating a precise birth chart involves complex astronomical calculations. This calculator acts as a simplified interface. To create a true astrological chart, specialized software and ephemeris tables (tables of planetary positions) are used. The core process involves:
Date, Time, and Location: These are the essential inputs. They determine the precise positions of the Sun, Moon, and planets in the sky.
Sidereal Time Calculation: Converting the local birth time and location into a universal astronomical time reference (like Greenwich Mean Sidereal Time).
House System Calculation: Determining the boundaries of the twelve houses based on the latitude of the birth location and the sidereal time. Different house systems exist (e.g., Placidus, Koch, Whole Sign), each with its own mathematical approach.
Planetary Position Calculation: Using astronomical algorithms and ephemeris data to calculate the exact degrees and minutes of each planet within the zodiac signs for the birth moment.
Interpretation (Beyond Calculator Scope): While this calculator provides the foundational data, interpreting the chart requires astrological knowledge of how planets, signs, houses, and aspects interact.
Use Cases:
Self-Discovery: Gain deeper insights into your strengths, weaknesses, and motivations.
Relationship Understanding: Explore compatibility and dynamics with others.
Life Path Guidance: Identify potential career paths and life purposes.
Understanding Challenges: Recognize recurring patterns and how to navigate them.
Astrological Study: A starting point for learning and practicing astrology.
Please note: This calculator provides the raw data for a birth chart. For a full astrological interpretation, consult with a professional astrologer. The accuracy of the chart depends on the precision of the birth time provided.
function calculateBirthChart() {
var birthDate = document.getElementById("birthDate").value;
var birthTime = document.getElementById("birthTime").value;
var birthLocation = document.getElementById("birthLocation").value;
var resultOutput = document.getElementById("result-output");
if (!birthDate || !birthTime || !birthLocation) {
resultOutput.textContent = "Please fill in all fields.";
return;
}
// — Core Calculation Logic Placeholder —
// In a real-world scenario, this is where complex astronomical calculations would occur.
// This involves:
// 1. Converting birth date/time/location to Julian Day.
// 2. Calculating Greenwich Mean Sidereal Time (GMST).
// 3. Calculating Local Sidereal Time (LST).
// 4. Determining Ascendant and Midheaven using LST and latitude/longitude (requires a lookup for location's lat/lon).
// 5. Calculating planetary positions using ephemeris data and algorithms.
// 6. Assigning planets to houses based on a chosen house system.
//
// Since providing a full, accurate astronomical calculation engine is beyond the scope
// of a simple HTML/JS snippet and requires external libraries or extensive data,
// we'll simulate a result for demonstration purposes.
// For actual astrological charts, dedicated software or APIs are typically used.
// Simulate calculation based on available data
var dateParts = birthDate.split('-');
var year = parseInt(dateParts[0]);
var month = parseInt(dateParts[1]);
var day = parseInt(dateParts[2]);
var timeParts = birthTime.split(':');
var hours = parseInt(timeParts[0]);
var minutes = parseInt(timeParts[1]);
// Rough approximation: Assign a few key placements based on simplified rules
// THIS IS NOT ACCURATE ASTROLOGY, just a placeholder for the output format.
var sunSign = getSunSign(month, day);
var moonSign = getMoonSign(month, day, hours, minutes); // Very simplified moon sign
var ascendant = getAscendant(hours, minutes, birthLocation.length % 12); // Placeholder based on location string length
var outputText = "Birth Date: " + birthDate + "";
outputText += "Birth Time: " + birthTime + "";
outputText += "Birth Location: " + birthLocation + "";
outputText += "Key Placements (Simulated):";
outputText += "Sun Sign: " + sunSign + "";
outputText += "Moon Sign: " + moonSign + "";
outputText += "Ascendant (Rising): " + ascendant + "";
outputText += "Note: These placements are illustrative approximations. Accurate birth chart calculation requires complex astronomical data and algorithms.";
resultOutput.innerHTML = outputText;
}
// — Simplified Placeholder Functions —
// These are extremely basic approximations and do NOT represent real astrological calculations.
function getSunSign(month, day) {
if ((month == 3 && day >= 21) || (month == 4 && day = 20) || (month == 5 && day = 21) || (month == 6 && day = 21) || (month == 7 && day = 23) || (month == 8 && day = 23) || (month == 9 && day = 23) || (month == 10 && day = 23) || (month == 11 && day = 22) || (month == 12 && day = 22) || (month == 1 && day = 20) || (month == 2 && day = 19) || (month == 3 && day <= 20)) return "Pisces";
return "Unknown";
}
function getMoonSign(month, day, hours, minutes) {
// This is a *highly* simplified placeholder. Moon sign changes every ~2.5 days.
// A real calculation needs the exact date and time relative to a known Moon ephemeris.
var totalHours = hours + minutes / 60;
var dayOfYear = 0;
var daysInMonth = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (new Date().getFullYear() % 4 === 0) daysInMonth[2] = 29; // Leap year adjustment
for (var i = 1; i < month; i++) {
dayOfYear += daysInMonth[i];
}
dayOfYear += day;
var approximateIndex = (dayOfYear + totalHours / 24) % 27.3; // Rough cycle approximation
if (approximateIndex < 2.3) return "Aries";
if (approximateIndex < 4.6) return "Taurus";
if (approximateIndex < 6.9) return "Gemini";
if (approximateIndex < 9.2) return "Cancer";
if (approximateIndex < 11.5) return "Leo";
if (approximateIndex < 13.8) return "Virgo";
if (approximateIndex < 16.1) return "Libra";
if (approximateIndex < 18.4) return "Scorpio";
if (approximateIndex < 20.7) return "Sagittarius";
if (approximateIndex < 23.0) return "Capricorn";
if (approximateIndex < 25.3) return "Aquarius";
return "Pisces"; // Remainder
}
function getAscendant(hours, minutes, locationCode) {
// This is a *highly* simplified placeholder. Ascendant depends heavily on exact time, date, and latitude.
// We'll use a simple modulo operation based on time and a pseudo-random element from location.
var timeValue = (hours * 60 + minutes + locationCode * 10) % 1440; // 1440 minutes in a day
var degreePerMinute = 360 / 1440; // 15 degrees per hour, approx 0.25 degrees per minute
var ascendantDegree = (timeValue * degreePerMinute) % 360;
var signs = ["Aries", "Taurus", "Gemini", "Cancer", "Leo", "Virgo", "Libra", "Scorpio", "Sagittarius", "Capricorn", "Aquarius", "Pisces"];
var signIndex = Math.floor(ascendantDegree / 30); // Each sign is 30 degrees
return signs[signIndex] + " (" + Math.floor(ascendantDegree % 30) + "°)";
}