HR 8799 is a young, massive star located approximately 130 light-years from Earth in the constellation Pegasus. It is of particular interest to astronomers due to its planetary system, which consists of at least four massive gas giant planets orbiting the star. These planets were discovered in 2008 using direct imaging techniques, making HR 8799 one of the first stars outside of our solar system to have directly imaged planets. Research on HR 8799 focuses on studying the properties of these planets, their orbits, and formation mechanisms, as well as investigating the dynamics of the planetary system as a whole. Additionally, HR 8799 provides valuable insights into the formation and evolution of planetary systems, and has implications for our understanding of planet formation in general.