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Open Vimshottari periods →Word origin · etymology
Sanskrit numerical system name.
Viṃśottarī designates the 120-year scheme; daśā means period or condition. The numerical name concerns the full nominal cycle.
P. V. R. Narasimha Rao: Vedic Astrology, An Integrated Approach ↗
How we know · epistemology
Nakshatra-based timing convention
The selected lunar mansion and fraction remaining initialize a prescribed 120-year sequence. Ayanamsha, lunar precision and year length can shift dates; the sequence's arithmetic does not establish that its periods cause particular events.
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