TIL that the Pioneer 10 space probe passed the orbit of Neptune, the furthest planet away from the Sun at the time, on June 13, 1983. It was the first man-made object to leave the Solar System.

Read more: https://en.wikipedia.org/wiki/Pioneer_10

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  1. Pioneer 10 is currently in the constellation of Taurus. The current Right Ascension of Pioneer 10 is 05h 15m 09s and the Declination is +26° 00’ 58” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom. It is visible looking in the West-South-West direction at an altitude of 42° above the horizon. – Source: https://theskylive.com/pioneer10-info

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