�y��vlog

This allows the researchers to computationally progress the initial 3D structure of a hotspot over time as it orbits the black hole to create a whole light curve.

"As with other stars orbited by exoplanets, the observed light curve of WASP-39 is flatter than previous models can explain," she adds.

Researchers define a light curve as a measurement of the brightness of a star over a longer period of time.

Exoplanets can also leave traces in the light curve.

This is reflected in the light curve as a regularly recurring drop in brightness.