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One star anchors the Vedic zodiac: Spica, the star of Chitra
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Spica, the star of Chitra (the 14th nakshatra), defines the Lahiri ayanamsa: it stands at exactly 0° sidereal Libra.
This video belongs with Chitra Nakshatra: Meaning, Deity, Traits and Padas, which has the full explanation and its classical sources.
Transcript
One star anchors the zodiac that most Vedic astrologers use. It is Spica, the star of Chitra, the fourteenth nakshatra. When India standardised the sidereal zodiac in the nineteen fifties, the Lahiri ayanamsa was defined so that Spica stands at exactly zero degrees Libra. Almost every sidereal chart cast in India today depends on that one star. Chitra means the bright one, and its symbol is a shining jewel.
Find your own Moon's nakshatra with a free kundli at sunyra.ai.
Astrology is a tradition of interpretation; read this as guidance, not a forecast. Disclaimer.