Voyager 1 crosses the heliopause at 121.6 AU

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Low-energy particles of solar origin fell away and galactic cosmic rays rose sharply, indicating that the spacecraft had passed out of the solar wind and into interstellar plasma. The interpretation was contested at the time because the magnetic field direction did not turn as models had predicted it would at the boundary, and the spacecraft had no working plasma instrument to settle the question directly.

A node is not a place. Drawing it on a map would assert something about the world that no stored fact supports.