heliopause

How Long To Travel To Heliopause? Voyager 1 became the first spacecraft to cross the heliopause in August 2012, then at a distance of 121 AU (1.12×1010 mi; 1.81×1010 km) from the Sun, although this was not confirmed for another year. As of September 2012, sunlight took 16.89 hours to get to Voyager 1 which