Dive into fresh CHEOPS light curves! Your classifications are needed now to hunt for shallow transits and multi-planet systems. Every dip you spot brings us closer to finding Earth-like neighbors. Start classifying today!
Explore ultra-precise transit light curves and help discover new worlds!
Learn moreInspect star brightness plots for dips signaling transits. Mark the dip’s start and end, then classify the signal as a potential planet or noise. Submit your findings. Each target is reviewed by many volunteers to ensure accuracy and/or a detection. No astronomy background required, just your keen eye.
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Message from the researcher
Help us discover new exoplanet candidates hidden in this rich, largely unexplored dataset of high-precision light curves from space!
Bruno MerínAbout Planet Hunters CHEOPS
Welcome to Planet Hunters CHEOPS! The European Space Agency’s (ESA) CHEOPS satellite is revolutionising exoplanet science by measuring the brightness of stars with incredible precision. While its primary goal is to characterise planets already found by missions like TESS and Kepler, its data often holds hidden gems: shallow transits from small, Earth-sized worlds, signals from multi-planet systems, or unexpected variations that machines overlook.
Just like the successful Planet Hunters TESS project on Zooniverse, we need your eyes. Computers are great at finding obvious patterns, but they struggle with subtle, noisy, or unusual signals. By classifying light curves, i.e, the graphs showing how a star’s brightness changes over time, you can help us identify the tiny dips caused by a planet passing in front of its star. Every dip you spot contributes to a global effort to understand the diversity of planetary systems in our galaxy.
We have extracted light-curves from thousands of background sources on over five years of public observations taken by the CHEOPS space telescope and we are offering all of them for you to help us finding further transiting exoplanet signatures on any of these light-curves that have never been examined in detail to our knowledge.
Whether you are an astronomy enthusiast or a complete beginner, your contribution matters. Thousands of classifications per target allow us to filter out noise and confirm real signals. Several discoveries from citizen science projects have led to peer-reviewed scientific papers, with volunteers credited as co-authors. Together, we are pushing the boundaries of what we know about worlds beyond our solar system. Get started today and become part of the next great exoplanet discovery!
