OGLE-2011-BLG-0173L is a Sun-like G-type star (about 0.41 solar masses, 5,778 K), 6,100 light-years from Earth. OGLE-2011-BLG-0173L b is a 0.19-Jupiter-mass companion, at 8.000 AU from its star, discovered in 2018 via microlensing. Microlensing detections occur when a foreground star's gravity briefly magnifies a background source, revealing planets that are otherwise too faint and distant to observe directly. OGLE-2011-BLG-0173L b orbits far from its host star. At roughly 6,100 light-years, OGLE-2011-BLG-0173L lies far beyond the nearest stars yet remains reachable to large survey telescopes. Microlensing events are fleeting, but they uniquely probe cold, distant planets that other methods rarely detect.

OGLE-2011-BLG-0173L - System

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