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sci.Kepler-third-law-orbit-period Calculator
Calculates orbital period from semi-major axis using Kepler's third law T² = 4π²a³/(GM) and vice versa. Mars at a = 1.524 AU has T = 1.88 years — Kepler derived this law empirically from Tycho Brahe's data two decades before Newton explained it.
Inputs
A Au
Reference formula or conversion factor shown for context.
M Solar
Total mass of the body. Used with height to calculate BMI and estimate lean mass.
Results
orbital period T (years)
Reference formula or conversion factor shown for context.
orbital period (days)
Reference formula or conversion factor shown for context.
mean orbital velocity (km/s)
Arithmetic average — sum divided by count. Simple and familiar, but pulled by outliers. If your data contains extreme values, the median may be more representative.
T² = a³ / M (in solar units)
Sample size or count used in the calculation.
Solar system benchmarks
Reference value for comparison — the industry standard, historical average, or target that this result is measured against.
exoplanet application
Recommended use case or application for this configuration or result.