Transit Probability Calculator

Formula

To calculate the Transit Probability (Tp):

\[ Tp = \frac{R}{a} \]

Where:

\(Tp\) is the Transit Probability
\(R\) is the Stellar Radius
\(a\) is the Star-Planet Distance

What is Transit Probability?

Transit Probability is the likelihood that a planet will transit, or pass in front of, its host star from our point of view. It is calculated by dividing the stellar radius by the star-to-planet distance.

Example Calculation 1

Let's assume the following values:

Stellar Radius (\(R\)) = 1 unit
Star-Planet Distance (\(a\)) = 10 units

Using the formula:

\[ Tp = \frac{1}{10} = 0.1 \]

The Transit Probability is 0.1.

Example Calculation 2

Let's assume the following values:

Stellar Radius (\(R\)) = 0.5 units
Star-Planet Distance (\(a\)) = 5 units

Using the formula:

\[ Tp = \frac{0.5}{5} = 0.1 \]

The Transit Probability is 0.1.