How to calculate an exoplanet radius

To start, we need to find the IAU of your constellation, mine is Puppis and this it's the IAU:

Now, we need to find exoplanets inside the cordinates of our constellation, we can find these in this website. In my case I picked the NGC 2423-3b.

Now, in order to get the linear regression graphic of your exoplanet, you need to use this website. This is the graphic from NGC 2423-3b.

Now, with the data from the graphic, we realize the next formula, using the highest and the lowest peak of the graphic and the radius of the star, here it is the example with my exoplanet using the graphic above:

Here I made a calculator wich helps you to make the calculus of your Exoplanet's radius using the formula above: