Orbital Calculator
Enter any year to compute all Holistic Universe Model predictions. Negative years represent BCE dates. All calculations run instantly in your browser.
J2000 reference values shown
These values are computed using the same formulas documented on the Formulas page, ported to TypeScript. The underlying Python source code is available on request.
Output Reference
| Section | Description |
|---|---|
| Earth — Orbital Elements | Perihelion longitude, obliquity, eccentricity, inclination to invariable plane |
| Earth — Time Periods | Solar, sidereal, and anomalistic years (in days and SI seconds); day length, sidereal day, stellar day |
| Earth — Precession Periods | Axial, perihelion, and inclination precession periods |
| All Planets — Perihelion Precession | Perihelion longitude, baseline rate, fluctuation, and total precession for Earth + 7 planets |
For the mathematical derivations behind each formula, see Formulas.
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