## FANDOM

8 Pages

The total duration, shown in minutes, was calculated using the following formula:

$T + \tau = \frac{P}{\pi}\arcsin\left(\frac{R_*}{a}\sqrt{(1 + \sqrt{\delta})^2 - b^2} \right)$

The ingress/egress time were calculated by subtracting the full width half maximum transit time

$T = \frac{P}{\pi}\arcsin\left(\frac{R_*}{a}\sqrt{1 - b^2} \right)$

from the total transit time.

Note: these formulae assume a circular orbit.

If the parameters were unknown, the following values were used:

$R_* = R_{sun}$

$\delta = 0.01$

$b = 0$

If a or P were unknown, the transit duration was left blank.