ExoClock project: a pro-am collaboration to monitor the exoplanet ephemerides for the Ariel space mission

ExoClock (exoclock.space) is a project aiming to monitor transiting exoplanets through regular observations using small and medium scale telescopes. The project is part of the ephemerides working group of ESA's Ariel space mission and the main scope is to maximise the mission efficiency. This effort was launched in EPSC2019 and we are actively collaborating with both professional and amateur astronomers coming from various countries across the world. In this talk, the current status of the project and the results of the first two publications will be presented. Our research includes a collective analysis of 1600 light-curves out of which 65% were obtained by amateur astronomers. This data was used to update the ephemerides of 180 planets. The ExoClock network currently consists of 270 participants out of whom 220 are amateur astronomers, a number that highlights the significant contribution of amateurs in our project.