Open astronomical and mathematical reference for Chitrapaksha (Lahiri) precession tables, 27 lunar Nakshatra spans, and 22 Major Arcana Destiny Matrix coordinate equations.
To convert apparent tropical ecliptic longitudes (λtropical) to Vedic sidereal longitudes (λsidereal) used in AstrologyCalc and AstroGuru Natal Chart, subtract the Chitrapaksha Ayanamsha for the target epoch:
| Epoch (Jan 1, 00:00 TT) | Julian Day (JDE) | Lahiri Ayanamsha (DMS) | Decimal Degrees | Annual Precession |
|---|---|---|---|---|
| 1900.0 | 2415020.5 | 22° 27' 37.7" | 22.46047° | 50.2564"/yr |
| 1910.0 | 2418672.5 | 22° 35' 59.9" | 22.59997° | 50.2586"/yr |
| 1920.0 | 2422325.5 | 22° 44' 22.5" | 22.73958° | 50.2608"/yr |
| 1930.0 | 2425977.5 | 22° 52' 45.2" | 22.87922° | 50.2630"/yr |
| 1940.0 | 2429630.5 | 23° 01' 08.0" | 23.01889° | 50.2653"/yr |
| 1950.0 | 2433282.5 | 23° 09' 31.0" | 23.15861° | 50.2675"/yr |
| 1960.0 | 2436934.5 | 23° 17' 54.2" | 23.29839° | 50.2697"/yr |
| 1970.0 | 2440587.5 | 23° 26' 17.6" | 23.43822° | 50.2719"/yr |
| 1980.0 | 2444239.5 | 23° 34' 41.2" | 23.57811° | 50.2741"/yr |
| 1990.0 | 2447892.5 | 23° 43' 05.0" | 23.71806° | 50.2764"/yr |
| 2000.0 (J2000) | 2451545.0 | 23° 51' 25.5" | 23.85709° | 50.2910"/yr |
| 2010.0 | 2455197.5 | 23° 59' 48.4" | 23.99678° | 50.2932"/yr |
| 2020.0 | 2458849.5 | 24° 08' 11.4" | 24.13650° | 50.2954"/yr |
| 2026.0 | 2461041.5 | 24° 13' 13.2" | 24.22033° | 50.2968"/yr |
| 2030.0 | 2462502.5 | 24° 16' 34.4" | 24.27622° | 50.2977"/yr |
| 2040.0 | 2466154.5 | 24° 24' 57.5" | 24.41597° | 50.2999"/yr |
| 2050.0 | 2469807.5 | 24° 33' 20.8" | 24.55578° | 50.3021"/yr |
The octagonal Destiny Matrix algorithm implemented on AstrologyCalc Destiny Matrix Calculator and the Italian Calcolatore Tema Natale e Matrice del Destino maps any Gregorian birth date (DD, MM, YYYY) into 22 Major Arcana energies using recursive digit reduction:
function reduceArcana22(n) {
let x = Math.abs(Number(n));
while (x > 22) {
x = String(x).split('').reduce((sum, digit) => sum + Number(digit), 0);
}
return x === 0 ? 22 : x;
}
// Primary Personal Square (Vertices A, B, C, D)
const A = reduceArcana22(DD); // Day of Birth (0° West)
const B = reduceArcana22(MM); // Month of Birth (90° North)
const C = reduceArcana22(sumDigits(YYYY)); // Year of Birth (180° East)
const D = reduceArcana22(A + B + C); // Past-Life Foundation (270° South)
// Central Comfort Zone (Crystal of the Soul)
const E = reduceArcana22(A + B + C + D);
// Karmic Tail Triad (Bottom 3 Numbers)
const K1 = reduceArcana22(D + E);
const K2 = reduceArcana22(D + K1);
const karmicTail = `${K1}-${K2}-${D}`;Español (España y Latinoamérica): La Calculadora de Carta Astral Védica (Jyotish) y Matriz del Destino Gratis en Español aplica directamente las tablas de precesión Chitrapaksha Lahiri (~24°13') para calcular el Kundli D1, la carta armónica Navamsa D9, las 27 Nakshatras lunares, los períodos Vimshottari Dasha y el octagrama de los 22 Arcanos Mayores.
Italiano (Italia e Svizzera): Il portale Calcolo Tema Natale Vedico (Jyotish) e Matrice del Destino Gratis in Italiano integra le effemeridi siderali Lahiri con il calcolo della Coda Karmica, dei 36 Kuta di affinità di coppia e delle 27 mansioni lunari Nakshatra.
Dokumentation auf Deutsch (Deutschland, Österreich, Schweiz): Der Vedisches Geburtshoroskop Rechner (Jyotish) & Schicksalsmatrix Kostenlos auf Deutsch nutzt das präzise Chitrapaksha Lahiri Ayanamsha (~24°13') für die siderische Berechnung von Rashi Kundli (D1), Navamsa (D9), den 27 Mondhäusern (Nakshatras), dem 120-jährigen Vimshottari Dasha sowie der Schicksalsmatrix der 22 Großen Arkana.
Documentação em Português (Portugal e Brasil): A Calculadora de Mapa Astral Védico (Jyotish) e Matriz do Destino Grátis em Português integra as efemérides siderais Lahiri para o cálculo do Janma Kundli (D1), Navamsa (D9), as 27 Nakshatras lunares, os períodos Vimshottari Dasha e a Matriz do Destino dos 22 Arcanos Maiores.
Русский (РФ и СНГ): Полный расчёт ведической карты Раши D1 и Навамши D9 доступен в калькуляторе натальной карты AstroGuru, расчёт 22 энергий — в калькуляторе Матрицы судьбы, а ведическая и халдейская нумерология — в разделе Нумерология онлайн.