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How close did Voyager 2 come to Triton?
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Triton
Image of Triton, Neptune's largest satellite, captured by a camera aboard Voyager 2, 1989.
During its historic encounter with the Neptunian system, the Voyager 2 spacecraft passed within approximately 40,000 kilometers (24,800 miles) of Triton.1
This close approach occurred on August 25, 1989, a few hours after the probe's flyby of Neptune. The proximity allowed the spacecraft to capture high-resolution imagery of the moon's diverse surface and obtain precise scientific measurements regarding its radius and surface temperature.1