584 · 5 × 584 = 8 × 365

LITThe Maya Venus table in the Dresden Codex uses a 584-day Venus cycle: 5 synodic periods = 2,920 days = 8 × 365. The true mean synodic period is 583.92 days.

COMPUTEDThis page finds Venus' inferior conjunctions from 2000–2060 with the same JPL-derived ephemeris as Sky Tonight (zero crossings of Venus−Sun ecliptic longitude while Venus is closest) and measures the intervals. The individual gaps wander by days around 583.9, which is why the Maya corrected their table. Tonight's elongation is computed live.

next conjunction

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