Stellar Mass Calculator
Calculate stellar mass using mass-luminosity relation, mass-radius relation, and orbital dynamics.
Inputs
Solar Luminosities
Solar Radii
K
days
AU
Results
Estimated Mass
1 Solar Masses
Main Sequence Lifetime
10,000,000,000 billion years
Mass from Luminosity1 Solar Masses
Mass from Radius1 Solar Masses
Mass from Orbit0 Solar Masses
Surface Gravity274.28 m/s²
How to Use This Calculator
- Enter Luminosity (solar luminosities), Radius (solar radii), and Surface Temperature (K) from spectrophotometry.
- For a binary system, also enter Orbital Period (days) and Semi-Major Axis (AU) to enable the most precise mass estimate.
- Read Estimated Mass (solar masses) — the best combined estimate from all available methods.
- Compare Mass from Luminosity, Mass from Radius, and Mass from Orbit to assess measurement consistency.
- Use Main Sequence Lifetime (billion years) and Surface Gravity (m/s²) to characterize the stellar evolutionary stage.
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Formula
M ∝ L^(1/3.5) (Mass-Luminosity Relation)Related Calculators
Stellar Luminosity Calculator
Calculate stellar luminosity using Stefan-Boltzmann law. Find absolute magnitude, main sequence lifetime, and stellar parameters.
Orbital Period Calculator
Calculate orbital period using Kepler's laws. Find orbital velocity, angular velocity, and perihelion/aphelion distances.
Escape Velocity Calculator
Calculate escape velocity, orbital velocity, and gravitational parameters for celestial bodies.
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