🪐 Perihelion Precession Calculator

Calculate orbital precession from LFM's χ field gradient. The same formula as Einstein's General Relativity, but explained by a real field effect rather than curved geometry.

🔬 LFM Mechanism

Newtonian orbits: Close perfectly (ellipses)

Real orbits: Precess slowly (rosette pattern)

LFM explanation: The χ field gradient near the Sun creates an additional effective potential, causing the orbit's perihelion to advance.

// Precession per orbit

δφ = 6πGM/(ac²(1-e²))

// LFM χ gradient

∇χ → extra radial force

→ orbit doesn't close

✓ Identical to GR result

Mercury's Relativistic Precession

42.98"
per century
Observed anomaly: 42.47" | Agreement: 98.8%

📜 Historical Significance

1859 - Le Verrier

Discovered Mercury's orbit precessed ~43"/century more than Newtonian mechanics could explain. Proposed a hidden planet "Vulcan" (never found).

1915 - Einstein

General Relativity predicted exactly 42.98"/century. Einstein later said this calculation gave him "heart palpitations" - GR's first triumph.

2025 - LFM

Same prediction, different explanation: The χ field gradient near the Sun creates an additional effective potential. Real field, not curved geometry.

📊 Precession Breakdown

SourcePrecession ("/century)
Perturbation from Venus277.86
Perturbation from Jupiter153.58
Perturbation from Earth90.04
Other planets + Sun oblateness10.15
Newtonian Total531.63
χ field gradient (LFM/GR)+42.98
Predicted Total574.61
Observed574.10 ± 0.65

χ Field Along Mercury's Orbit

Mercury's highly eccentric orbit (e = 0.2056) means it experiences significant χ variation between perihelion and aphelion.

Perihelion (closest)χ/χ₀ = 0.9999999679
Aphelion (furthest)χ/χ₀ = 0.9999999788
χ variationΔ(χ/χ₀) = 10.95 × 10⁻⁹
Orbital Parameters
Semi-major axis:0.387 AU
Eccentricity:0.2056
Orbital period:0.241 years
Orbits per century:414.9
Precession per orbit:0.1036"

Precessing Orbit Visualization

Precession exaggerated 50,000× to make visible. In reality, Mercury's orbit takes ~225,000 years to complete one full rotation.

Each color shade represents a different orbit. The perihelion (closest point) rotates around the Sun.

🎓 Key Physics

The Formula

δφ = 6πGM/(ac²(1-e²)) per orbit

  • • Closer orbits (smaller a) → more precession
  • • Higher eccentricity (e) → more precession
  • • Larger central mass (M) → more precession

LFM vs GR

  • GR says: Spacetime is curved, orbits follow geodesics
  • LFM says: χ gradient creates effective potential
  • Result: Mathematically identical predictions
  • Advantage: LFM mechanism is a real field, testable in principle