How Long Did It Take For Voyager 2 To Get To Neptune?
How Long Did It Take For Voyager 2 To Get To Neptune? Voyager 2 traveled 12 years at an average velocity of 19 kilometers a second (about 42,000 miles an hour) to reach Neptune, which is 30 times farther from the Sun than Earth is. Voyager observed Neptune almost continuously from June to October 1989.