Home > Astronomy, Exoplanets, General Astronomy, Pluto, Solar System > Sharpest-Ever Ground-Based Images Of Pluto And Charon: Proves A Powerful Tool For Exoplanet Discoveries

Sharpest-Ever Ground-Based Images Of Pluto And Charon: Proves A Powerful Tool For Exoplanet Discoveries


Credit: Gemini Observatory/NSF/NASA/AURA

Despite being infamously demoted from its status as a major planet, Pluto (and its largest companion Charon) recently posed as a surrogate extrasolar planetary system to help astronomers produce exceptionally high-resolution images with the Gemini North 8-meter telescope. Using a method called reconstructive speckle imaging, the researchers took the sharpest ground-based snapshots ever obtained of Pluto and Charon in visible light, which hint at the exoplanet verification power of a large state-of-the-art telescope when combined with speckle imaging techniques. The data also verified and refined previous orbital characteristics for Pluto and Charon while revealing the pair’s precise diameters.

“The Pluto-Charon result is of timely interest to those of us wanting to understand the orbital dynamics of this pair for the 2015 encounter by NASA’s New Horizons spacecraft,” said Steve Howell of the NASA Ames Research Center, who led the study. In addition, Howell notes that NASA’s Kepler mission, which has already proven a powerful exoplanet discovery tool, will benefit greatly from this technique.

Full Story: http://www.gemini.edu/node/11893

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