The Multi-Gear Orbital Clock & Resonance Engine

Simultaneous real-time harmonic decomposition of the 5 non-commensurable lunar month cycles.

🔭OBSERVED
Sep 1, 2026
Barycenter
Orbital Resonance Index
18%Quiet
Ecliptic Plane Crossing (Node alignment — Eclipse window active)
Synodic Month(29.53 d)
Day 19.37 / 29.5 (65.6%)

Phase cycle governing illumination and Sun-Earth-Moon alignment

Anchor: Sun Conjunction (New Moon)Angle: 236.14°
Anomalistic Month(27.55 d)
Day 19.92 / 27.6 (72.29%)

Apsidal cycle from Perigee (closest) to Perigee

Anchor: Perigee (356,400 km)Angle: 260.25°
Draconic Month(27.21 d)
Day 13.94 / 27.2 (51.22%)

Nodal cycle between successive ascending node crossings

Anchor: Ascending Ecliptic Node (☊)Angle: 184.4°
Sidereal Month(27.32 d)
Day 25.1 / 27.3 (91.87%)

True orbital revolution relative to the fixed background stars (ICRS)

Anchor: Vessel of fixed stars (Aries 0°)Angle: 330.75°
Tropical Month(27.32 d)
Day 25.18 / 27.3 (92.16%)

Ecliptic longitude cycle relative to the precessing Vernal Equinox

Anchor: Vernal Equinox Point (♈)Angle: 331.78°
Nodal Precession (18.61 y)
43.28% · Minor Lunar Standstill
Apsidal Precession (8.85 y)
1.32% through rotation

The Physics of Multiple Lunar Clocks

Popular culture treats the lunar cycle as a single 29.5-day loop. In celestial mechanics, however, the Moon’s trajectory through spacetime is an unclosed harmonic spiral governed by five fundamental periods:

1. The Synodic Month (29.530589 d)

The period of Sun–Earth–Moon collinearity. Governs the illumination fraction, phases, and solar-lunar gravitational tides.

2. The Anomalistic Month (27.554551 d)

The apsidal revolution from Perigee to Perigee. Modulates apparent diameter from 29.3′ to 33.5′ and modulates tidal force by ~48%.

3. The Draconic Month (27.212220 d)

The nodal period between ascending node crossings. Dictates whether syzygy occurs within an eclipse alignment window.

4. The Sidereal Month (27.321661 d)

True orbital revolution relative to the fixed ICRS celestial frame, completing a 360° inertial loop.