Hack an Exoplanet Step 2 | How to determine the size of an exoplanet


When an exoplanet passes in front of its star, known as a transit, there is a dip in the light received from the star. Join Cheops Project Scientist, Maximillian Guenther, to learn how to measure the depth of the dip in the transit light curve data and discover how to determine the size of two exoplanet targets: KELT-3b and TOI-560c.

This video has been developed in the context of the first ever ESA Education hackathon for secondary students: “Hack an Exoplanet”. This educational activity allows students to use real satellite data to investigate alien worlds and become exoplanet detectives for a day.

Find out more on the Hack an Exoplanet platform: https://hackanexoplanet.esa.int/challenges-size

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  1. 1) Does this measure consider the potential presence of (little) moons around exoplanets?
    2) Would an "alien" Webb telescope be able to detect Earth and its moon?
    3) Will we have to consider the presence of "protecting" moons (like ours) to evaluate exoplanets that could effectively be compatible with life, especially intelligent life?

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