<p>Antispinwards is correct. However, for the practical purpose of <em>estimating</em> a mass, you can construct a mass-radius plot for all the exoplanets with <em>known</em> mass, use this to define a mean mass-radius relationship (which has significant scatter), and then use that relationshipto assign a mass to your planet.</p>

CC BY-SA 4.0
2020-10-01T06:31:33.237Z
2020-10-01T06:31:33.237Z
ProfRob
<p>Is there any way to calculate (or at least estimate) mass of an exoplanet from transit method? I know that mass can be calculated with radial velocity method, however I would like to create program for processing Kepler light curves (without radial velocity data).</p>
<p>The data I have are:</p>
<ul>
<li>radius, mass, surface temperature and luminosity of star,</li>
<li>orbital period, semi-major axis and radius of exoplanet,</li>
<li>duration and depth of transit.</li>
</ul>

<exoplanet><mass><planetary-transits><light-curve>
Calculate mass of exoplanet from transit method
Michal
# Calculate mass of exoplanet from transit method

(Asked by: username_0 on 2020-09-30)

Is there any way to calculate (or at least estimate) mass of an exoplanet from transit method? I know that mass can be calculated with radial velocity method, however I would like to create program for processing Kepler light curves (without radial velocity data).

The data I have are:

* radius, mass, surface temperature and luminosity of star,
* orbital period, semi-major axis and radius of exoplanet,
* duration and depth of transit.

**Tags:** exoplanet, mass, planetary-transits, light-curve


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## 1 answers

### Answer by username_1 on 2020-10-01. Score: 1

Antispinwards is correct. However, for the practical purpose of *estimating* a mass, you can construct a mass-radius plot for all the exoplanets with *known* mass, use this to define a mean mass-radius relationship (which has significant scatter), and then use that relationshipto assign a mass to your planet.


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