NASA - Voyager Enters Solar System's Final Frontier: "Image Right:The Voyagers are identical but on different flight paths. Voyager 1 is about 8.7 billion miles from the Sun and traveling at a speed of 3.6 AU per year while Voyager 2 is about 6.5 billion miles away and moving at about 3.3 AU per year. One 'AU' equals the distance between the Sun and Earth, or 93 million miles. In July 2004 scientists used Voyagers to track a solar blast to the edges of the solar system. Credit: NASA/Walt Feimer"

Wow, 3.3 x 93 million miles, a year. That's tight.