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# Mass from Luminosity

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Equation / Last modified by KurtHeckman on 2019/08/16 00:00
`M = `

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Rating

ID

sspickle.Mass from Luminosity

UUID

69b40c83-59ac-11e7-9770-bc764e2038f2

The **Mass from Luminosity** calculator approximates the mass of a star based on its luminosity.

**INSTRUCTIONS:**

- (
**L**) This is the luminosity in Solar Units (i.e. multiples of luminosity compared to the Sun).

**Stellar Mass (M):** The calculator returns the mass of the star (**M**) in Solar Masses (multiples of the mass of the Sun). However, this can be automatically converted to other mass units via the pull-down menu.

### The Math / Science

There is a relationship between mass and luminosity for stars in the "hydrogen" burning phase of their life cycle (the so called "main sequence"). This formula estimates the mass of a main sequence star given its luminosity.

#### Astronomy Calculators

- Kepler's 3
^{rd}Law formula T² = (4π • R³)/(G • M) - Small Angle Formula
- Flux and Magnitude formulas
- Telescope formulas
- Mass formulas
- Relative Size Formulas
- Wavelength Formulas
- Luminosity and other Formulas
- Stefan-Botzmann Law

This equation,

**Mass from Luminosity**, is used in 2 calculators.**Calculators**