Gemini Planet Imager (GPI) photo of the planetary system HR 8799, showing three of the system's four known planets. (The star is in the middle; planet b is outside the field of view shown here, off to the left.) These data were obtained on Nov. (Christian Marois (NRC Canada), Patrick Ingraham (Stanford University) and the GPI Team.)
Gemini Planet Imager photo of the circumstellar disc around the star HR 4796A. These observations reveal a complex pattern of variations in brightness and polarization around the disc. (Marshall Perrin (Space Telescope Science Institute), Gaspard Duchene (UC Berkeley), Max Millar-Blanchaer (Universi...
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