This artist's illustration shows the motion of three of the outermost planets in the HR 8799 system as measured over a 10-year period from Hubble Space Telescope archival data and more recent ground-based telescopic data.
Image Type: Illustration
Illustration Credit: NASA, ESA, and A. Feild (STScI)
Science Credit: NASA, ESA, and R. Soummer (STScI)
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