Exoplanets dance around distant star in stunning 12-year timelapse (video)

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I went back and reviewed the exoplanet.eu site and NASA archive site for stars with multiple planets.

exoplanet.eu site shows 853, the NASA archive site shows 880, both include HR 8799 system (4 planets). Both sites show stars with 4 or more, up to 8 (107 systems). This includes TRAPPIST-1 system. Comparing these multi-planet systems is very interesting when looking at our solar system. HR 8799 is a good example. Another interesting example, Kepler-11 system with 6.