Enter your birth details to generate your basic astrological chart placements.
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February
March
April
May
June
July
August
September
October
November
December
Your birth chart placements will appear here.
Understanding Your Zodiac Birth Chart
Your astrological birth chart, also known as a natal chart, is a snapshot of the sky at the precise moment and location of your birth. It's a complex map that reveals the positions of the planets, the Sun, and the Moon in the zodiac signs and astrological houses. This chart is believed by astrologers to offer profound insights into your personality, potential, challenges, relationships, and life path.
Key Components of a Birth Chart:
The Sun Sign: Represents your core identity, ego, and conscious self. It's what most people refer to as their "zodiac sign."
The Moon Sign: Governs your emotions, instincts, subconscious, and inner world. It shows how you nurture and express feelings.
The Ascendant (Rising Sign): The zodiac sign that was rising on the eastern horizon at your birth. It represents your outward personality, how others perceive you, and your initial approach to life.
The Midheaven (MC): Represents your public image, career, aspirations, and life direction.
The Planets: Each planet (Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto) signifies different energies, drives, and functions within your psyche. Their zodiac sign and house placement indicate how these energies manifest.
The Houses: The birth chart is divided into 12 houses, each representing a different area of life (e.g., self, possessions, communication, home, love, work, relationships, spirituality).
Aspects: The angular relationships between planets, which create dynamics and influence the expression of their energies.
How the Calculator Works (Simplified):
This calculator provides a simplified output of your core placements based on the astrological concepts of:
Zodiac Sign Determination: The Sun, Moon, and Ascendant signs are calculated based on your birth date, time, and location. The Sun sign is determined by the date range, while the Moon and Ascendant require precise birth time and geographic coordinates.
House System: The 12 houses are calculated based on your birth time and location using a specific astrological house system (often the Placidus system is used as a default). The Ascendant marks the cusp of the 1st house, and the Midheaven marks the cusp of the 10th house.
Note: A full, accurate astrological birth chart calculation requires sophisticated astronomical algorithms and ephemeris data. This calculator offers a foundational understanding and may not be as precise as professional astrological software or a human astrologer for detailed interpretations. Time zone and daylight saving time accuracy are crucial for precise Ascendant and house calculations.
Use Cases:
Self-Discovery: Gain insights into your personality, strengths, and potential challenges.
Understanding Relationships: Learn how your placements might influence your interactions with others.
Career Guidance: Explore potential career paths indicated by your Midheaven and house placements.
Astrology Education: A practical tool for beginners to understand basic astrological concepts.
Quick Reference: A fast way to get your core zodiac sign, Moon sign, and Ascendant.
function updateDays() {
var month = parseInt(document.getElementById("month").value);
var dayInput = document.getElementById("day");
var maxDays = 31;
if (month === 2) { // February
maxDays = 29; // Assume leap year for simplicity, actual calculation is more complex
} else if (month === 4 || month === 6 || month === 9 || month === 11) { // April, June, September, November
maxDays = 30;
}
dayInput.max = maxDays;
if (parseInt(dayInput.value) > maxDays) {
dayInput.value = maxDays;
}
}
// Initialize max days for February on page load
document.addEventListener("DOMContentLoaded", updateDays);
function getZodiacSign(month, day) {
if ((month == 1 && day = 22)) return "Capricorn";
if ((month == 1 && day >= 20) || (month == 2 && day = 19) || (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 <= 21)) return "Sagittarius";
return "Unknown";
}
// Placeholder for actual astrological calculation logic
// This is a highly complex task requiring astronomical data and algorithms.
// A simplified version might approximate Moon and Ascendant signs,
// but accurate house cusps and planetary positions require dedicated libraries.
function calculateAstrologicalPositions(year, month, day, hour, minute, tzOffset, lat, lon) {
var sunSign = getZodiacSign(month, day);
var moonSign = "Calculating…"; // Placeholder
var ascendantSign = "Calculating…"; // Placeholder
// Simplified logic for demonstration purposes – NOT astrologically accurate for Moon/Ascendant
// Actual calculation involves Julian day, sidereal time, house systems, etc.
// Approximate Moon Sign (very rough estimate)
var totalMinutes = (hour * 60) + minute;
var dayOfYear = Math.floor((new Date(year, month – 1, day) – new Date(year, 0, 0)) / 1000 / 60 / 60 / 24);
var approximatePosition = (dayOfYear * 1440 + totalMinutes) % 27.3; // Moon's cycle approx 27.3 days
if (approximatePosition < 27.3) moonSign = "Aries (approx)";
if (approximatePosition < 24.4) moonSign = "Pisces (approx)";
if (approximatePosition < 21.5) moonSign = "Aquarius (approx)";
if (approximatePosition < 18.6) moonSign = "Capricorn (approx)";
if (approximatePosition < 15.7) moonSign = "Sagittarius (approx)";
if (approximatePosition < 12.8) moonSign = "Scorpio (approx)";
if (approximatePosition < 9.9) moonSign = "Libra (approx)";
if (approximatePosition < 7.0) moonSign = "Virgo (approx)";
if (approximatePosition < 4.1) moonSign = "Leo (approx)";
if (approximatePosition < 1.2) moonSign = "Cancer (approx)"; // Simplified segments
// This is a very crude approximation and will be wrong most of the time.
// For actual Moon sign, you need ephemeris data.
// Approximate Ascendant (even more complex, highly dependent on time/location)
// A very, very basic approximation might use time of day and latitude.
// This will NOT be accurate.
var timeFactor = (hour + minute/60) / 24;
var latFactor = lat / 90; // Normalize latitude
var ascendantValue = (timeFactor + latFactor) % 1; // Highly simplified
if (ascendantValue < 0.083) ascendantSign = "Aries (approx)";
else if (ascendantValue < 0.167) ascendantSign = "Taurus (approx)";
else if (ascendantValue < 0.25) ascendantSign = "Gemini (approx)";
else if (ascendantValue < 0.333) ascendantSign = "Cancer (approx)";
else if (ascendantValue < 0.417) ascendantSign = "Leo (approx)";
else if (ascendantValue < 0.5) ascendantSign = "Virgo (approx)";
else if (ascendantValue < 0.583) ascendantSign = "Libra (approx)";
else if (ascendantValue < 0.667) ascendantSign = "Scorpio (approx)";
else if (ascendantValue < 0.75) ascendantSign = "Sagittarius (approx)";
else if (ascendantValue < 0.833) ascendantSign = "Capricorn (approx)";
else if (ascendantValue < 0.917) ascendantSign = "Aquarius (approx)";
else ascendantSign = "Pisces (approx)";
// This is EXTREMELY simplified and generally incorrect.
return {
sun: sunSign,
moon: moonSign,
ascendant: ascendantSign
};
}
function calculateZodiacChart() {
var month = parseInt(document.getElementById("month").value);
var day = parseInt(document.getElementById("day").value);
var year = parseInt(document.getElementById("year").value);
var hour = parseInt(document.getElementById("hour").value);
var minute = parseInt(document.getElementById("minute").value);
var tzOffsetStr = document.getElementById("timezone").value;
var latitudeStr = document.getElementById("latitude").value;
var longitudeStr = document.getElementById("longitude").value;
var resultTextElement = document.getElementById("resultText");
// Input validation
if (isNaN(day) || isNaN(year) || isNaN(hour) || isNaN(minute) ||
tzOffsetStr === "" || latitudeStr === "" || longitudeStr === "") {
resultTextElement.innerHTML = "Please fill in all fields correctly.";
return;
}
var tzOffset = parseFloat(tzOffsetStr);
var latitude = parseFloat(latitudeStr);
var longitude = parseFloat(longitudeStr);
if (isNaN(tzOffset) || isNaN(latitude) || isNaN(longitude)) {
resultTextElement.innerHTML = "Invalid number format for timezone, latitude, or longitude.";
return;
}
if (month 12 || day 31 || year 2100 ||
hour 23 || minute 59 ||
latitude 90 || longitude 180) {
resultTextElement.innerHTML = "Please enter valid date, time, and location values.";
return;
}
// Perform simplified calculations
var positions = calculateAstrologicalPositions(year, month, day, hour, minute, tzOffset, latitude, longitude);
var displayResult = "Your Core Placements:";
displayResult += "Sun Sign: " + positions.sun + "";
displayResult += "Moon Sign: " + positions.moon + "";
displayResult += "Ascendant (Rising Sign): " + positions.ascendant + "";
displayResult += "(Note: Moon and Ascendant are approximate and require precise astrological software for accuracy)";
resultTextElement.innerHTML = displayResult;
}