In 2008, ground-based telescopes at the Keck and Gemini observatories captured direct images of three giant planets orbiting the young star HR 8799, roughly 129 light-years away — the first time multiple planets around another star had been directly imaged together (a fourth, innermost planet was found in follow-up imaging in 2010). The planets are visible only because they are young, hot, and far enough from their host star for its glare to be blocked out.
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In 2008, ground-based telescopes at the Keck and Gemini observatories captured direct images of three giant planets orbiting the young star HR 8799, roughly 129 light-years away — the first time multiple planets around another star had been directly imaged together (a fourth, innermost planet was found in follow-up imaging in 2010). The planets are visible only because they are young, hot, and far enough from their host star for its glare to be blocked out.
The year the first system of multiple exoplanets orbiting another star was directly imaged in a single observation.
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Permanent ID limitsregistry.com/limits/LR-FIRST-DIRECTLY-IMAGED-MULTIPLANET-SYSTEM
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Limits Registry. LR-FIRST-DIRECTLY-IMAGED-MULTIPLANET-SYSTEM. First directly imaged multi-planet system. 2026.