<p>How do I calculate the surface temperature of a star from luminosity? I've been trying to delve into speculative solar systems for a bit, and I've heard the surface temperature of a star can be calculated from its brightness, but I can't find any ways to do that! Is it even possible to do so?</p>

CC BY-SA 4.0
2020-07-15T06:45:28.803Z
For a start, can you convert your luminosity to units of power and then use the [Stefan–Boltzmann_law](https://en.m.wikipedia.org/wiki/Stefan–Boltzmann_law) and see what you get? It should be at least a good estimate.
uhoh
CC BY-SA 4.0
2020-07-15T07:18:39.350Z
Does this answer your question? [How to calculate the temperature of a star](https://astronomy.stackexchange.com/questions/13104/how-to-calculate-the-temperature-of-a-star)
Eisenbiegler
CC BY-SA 4.0
2020-07-15T11:27:22.340Z
make use of the radius-luminosity relation for main-sequence stars and assume a black body temperature.
planetmaker
<star><temperature><luminosity>
How do I calculate the surface temperature of a star from luminosity?
bigboi
# How do I calculate the surface temperature of a star from luminosity?

(Asked by: username_0 on 2020-07-15)

How do I calculate the surface temperature of a star from luminosity? I've been trying to delve into speculative solar systems for a bit, and I've heard the surface temperature of a star can be calculated from its brightness, but I can't find any ways to do that! Is it even possible to do so?

**Tags:** star, temperature, luminosity

> **Comments:**
> **username_1**: For a start, can you convert your luminosity to units of power and then use the [Stefan–Boltzmann_law](https://en.m.wikipedia.org/wiki/Stefan–Boltzmann_law) and see what you get? It should be at least a good estimate.  
> **username_2**: Does this answer your question? [How to calculate the temperature of a star](https://astronomy.stackexchange.com/questions/13104/how-to-calculate-the-temperature-of-a-star)  
> **username_3**: make use of the radius-luminosity relation for main-sequence stars and assume a black body temperature.  

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## 0 answers

