The Galactic Frame Calibration Epoch
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The planetary nodal axes, when mapped against the galactic frame, sort into three structural families: Saturn's nodes align with the Summer/Winter Solstice crossings (0.185°, within σ floor); Jupiter/Venus/Uranus nodes align toward the Galactic Center/Anticenter axis; Mercury/Mars nodes align toward the equinox axis; the Moon's nodes align near Sirius (1.795°) and Vega/Abhijit (1.345°). From this structure, vernal equinox traversal epochs are computed. The primary calibration epoch is identified as 4491 BCE: the last vernal equinox alignment with the Galactic Anticenter (GAC, 66.84° sidereal), yielding ayanamsa -66.84° at that epoch. Secondary calibration epochs: 6821 BCE (VE at Sirius), 4001 BCE (VE at Krittika/Pleiades, matching the Shatapatha Brahmana reference), 3102 BCE (VE at Rohini, traditional Kali Yuga start). The 4491 BCE epoch is the structural anchor of the JCE galactic frame coordinate system.
Fields of Study & Subjects
Historical Astronomy and Related Studies
Historical and Architectural Studies
History and Developments in Astronomy
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 16 March 2026
- Language
- EN
- Document type
- Preprint