36 finite reference pages · released 2026-08-18
Ingresses, stations, lunations, and daśā—without hidden conventions
This library explains how timing events are defined, calculated, bracketed, versioned, and used in reports. It is deliberately finite: one substantial reference per major method or event family, not daily auto-generated horoscope pages.
Event before meaning
A crossing, speed reversal, phase root, or period boundary is calculated before any tradition rule is considered.
Every crossing retained
Retrograde re-entry and repeated boundary crossings remain chronology, rather than being compressed into one convenient date.
No predictive shortcut
Deterministic dates are reproducible conventions, not evidence that a symbolic rule predicts an outcome.
Ingresses
10 references
Sun ingress calculation reference
How Maha defines and brackets each Sun zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Mercury ingress calculation reference
How Maha defines and brackets each Mercury zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Venus ingress calculation reference
How Maha defines and brackets each Venus zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Mars ingress calculation reference
How Maha defines and brackets each Mars zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Jupiter ingress calculation reference
How Maha defines and brackets each Jupiter zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Saturn ingress calculation reference
How Maha defines and brackets each Saturn zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Uranus ingress calculation reference
How Maha defines and brackets each Uranus zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Neptune ingress calculation reference
How Maha defines and brackets each Neptune zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Pluto ingress calculation reference
How Maha defines and brackets each Pluto zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Lunar node ingress calculation reference
How Maha defines and brackets each Lunar node zodiac-boundary crossing in tropical and Lahiri-sidereal coordinates, including repeated crossings and uncertainty.
Stations
8 references
Mercury direct and retrograde station reference
A reproducible definition of Mercury stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Venus direct and retrograde station reference
A reproducible definition of Venus stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Mars direct and retrograde station reference
A reproducible definition of Mars stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Jupiter direct and retrograde station reference
A reproducible definition of Jupiter stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Saturn direct and retrograde station reference
A reproducible definition of Saturn stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Uranus direct and retrograde station reference
A reproducible definition of Uranus stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Neptune direct and retrograde station reference
A reproducible definition of Neptune stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Pluto direct and retrograde station reference
A reproducible definition of Pluto stations based on apparent geocentric ecliptic motion, with root finding, speed thresholds, and frame boundaries.
Lunations
6 references
New Moon calculation reference
How Maha calculates the New Moon as conjunction in ecliptic longitude, preserving UTC, phase direction, event type, location dependence, and uncertainty.
First Quarter Moon calculation reference
How Maha calculates the First Quarter Moon as waxing quadrature, preserving UTC, phase direction, event type, location dependence, and uncertainty.
Full Moon calculation reference
How Maha calculates the Full Moon as opposition in phase angle, preserving UTC, phase direction, event type, location dependence, and uncertainty.
Last Quarter Moon calculation reference
How Maha calculates the Last Quarter Moon as waning quadrature, preserving UTC, phase direction, event type, location dependence, and uncertainty.
Solar eclipse calculation reference
How Maha calculates the Solar eclipse as New Moon with node and observer-path geometry, preserving UTC, phase direction, event type, location dependence, and uncertainty.
Lunar eclipse calculation reference
How Maha calculates the Lunar eclipse as Full Moon entering Earth’s penumbral or umbral shadow, preserving UTC, phase direction, event type, location dependence, and uncertainty.
Vimśottarī daśā
12 references
Vimśottarī birth balance calculation
How the natal Moon’s elapsed nakṣatra fraction selects the opening lord and determines the unexpired portion of the first Vimśottarī period.
Vimśottarī mahādaśā sequence reference
The nine major-period order, nominal durations, 120-year cycle, and timestamp conventions used to construct a complete Vimśottarī timeline.
Vimśottarī antardaśā proportional timing reference
How Maha subdivides each major period into nine proportional sub-periods while preserving parent lord, sequence, boundaries, and rounding.
Ketu period in the Vimśottarī chronology
The calculation role of Ketu in the nine-lord Vimśottarī sequence, including its 7-year nominal mahādaśā duration and proportional sub-period timing.
Venus period in the Vimśottarī chronology
The calculation role of Venus in the nine-lord Vimśottarī sequence, including its 20-year nominal mahādaśā duration and proportional sub-period timing.
Sun period in the Vimśottarī chronology
The calculation role of Sun in the nine-lord Vimśottarī sequence, including its 6-year nominal mahādaśā duration and proportional sub-period timing.
Moon period in the Vimśottarī chronology
The calculation role of Moon in the nine-lord Vimśottarī sequence, including its 10-year nominal mahādaśā duration and proportional sub-period timing.
Mars period in the Vimśottarī chronology
The calculation role of Mars in the nine-lord Vimśottarī sequence, including its 7-year nominal mahādaśā duration and proportional sub-period timing.
Rahu period in the Vimśottarī chronology
The calculation role of Rahu in the nine-lord Vimśottarī sequence, including its 18-year nominal mahādaśā duration and proportional sub-period timing.
Jupiter period in the Vimśottarī chronology
The calculation role of Jupiter in the nine-lord Vimśottarī sequence, including its 16-year nominal mahādaśā duration and proportional sub-period timing.
Saturn period in the Vimśottarī chronology
The calculation role of Saturn in the nine-lord Vimśottarī sequence, including its 19-year nominal mahādaśā duration and proportional sub-period timing.
Mercury period in the Vimśottarī chronology
The calculation role of Mercury in the nine-lord Vimśottarī sequence, including its 17-year nominal mahādaśā duration and proportional sub-period timing.