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sci.planetary-orbital-period Calculator
Calculates planetary orbital period from semi-major axis using Kepler's third law: T² = 4π²a³/GM. Jupiter at 5.2 AU has T = 11.86 years — Kepler derived this law empirically before Newton explained it from universal gravitation.
Inputs
Semi Major Au
Reference formula or conversion factor shown for context.
Star Mass Solar
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Results
orbital period (years)
Reference formula or conversion factor shown for context.
orbital period (days)
Reference formula or conversion factor shown for context.
orbital speed (km/s)
The computed rate of movement or processing.
semi-major axis
Reference formula or conversion factor shown for context.
Kepler third law: T² = a³/M
Reference formula or conversion factor shown for context.
Earth
Reference formula or conversion factor shown for context.