Astrophysicists can measure Earth’s orbital precession to fractional milliseconds, but human experience rarely calibrates itself against celestial coordinates. Jonathan Larson chose 525,600 minutes because standard calendar math gave a clean, recognizable shape to a finite period of time.
The 348-minute shortfall between Broadway’s chorus and orbital reality matters in astronomy, orbital navigation, and telecommunications. Yet for civil calendars and the people living within them, 525,600 remains the defining benchmark for an ordinary year on Earth.
