https://photojournal.jpl.nasa.gov/catalog/PIA17046 This artist''s concept puts solar system distances in perspective. The scale bar is in astronomical units, with each set distance beyond 1 AU representing 10 times the previous distance. One AU is the distance from the sun to the Earth, which is about 93 million miles or 150 million kilometers. Neptune, the most distant planet from the sun, is about 30 AU. Informally, the term "solar system" is often used to mean the space out to the last planet. Scientific consensus, however, says the solar system goes out to the Oort Cloud, the source of the comets that swing by our sun on long time scales. Beyond the outer edge of the Oort Cloud, the gravity of other stars begins to dominate that of the sun. The inner edge of the main part of the Oort Cloud could be as close as 1,000 AU from our sun. The outer edge is estimated to be around 100,000 AU. NASA''s Voyager 1, humankind''s most distant spacecraft, is around 145 AU away. Scientists believe it entered interstellar space, or the space between stars, on Aug. 25, 2012. Some of interstellar space is actually inside our solar system. It will take about 300 years for Voyager 1 to reach the inner edge of the Oort Cloud and possibly about 30,000 years to fly beyond it. Alpha Centauri is currently the closest star to our solar system. But, in 40,000 years, Voyager 1 will be closer to the star AC +79 3888 than to our own sun. The Voyager spacecraft were built and continue to be operated by NASA''s Jet Propulsion Laboratory, in Pasadena, Calif. Caltech manages JPL for NASA. The Voyager missions are a part of NASA''s Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate at NASA Headquarters in Washington. For more information about Voyager, visit http://www.nasa.gov/voyager and http://voyager.jpl.nasa.gov.
其实再朝前飞距离上多一些数字，其它已经没有太大意义了吧。
要看怎么定义太阳系的边界
如果以飞出太阳重力影响消失的Oort cloud作为边界，那还早着呢，现在只飞了一光天的距离，还得再飞两光年。
NASA的说法12年8月就离开了
报道的第一句就是 已进入星际空间的
This artist''s concept puts solar system distances in perspective.
The scale bar is in astronomical units, with each set distance beyond 1 AU representing 10 times the previous distance. One AU is the distance from the sun to the Earth, which is about 93 million miles or 150 million kilometers. Neptune, the most distant planet from the sun, is about 30 AU.
Informally, the term "solar system" is often used to mean the space out to the last planet.
Scientific consensus, however, says the solar system goes out to the Oort Cloud, the source of the comets that swing by our sun on long time scales. Beyond the outer edge of the Oort Cloud, the gravity of other stars begins to dominate that of the sun. The inner edge of the main part of the Oort Cloud could be as close as 1,000 AU from our sun. The outer edge is estimated to be around 100,000 AU.
NASA''s Voyager 1, humankind''s most distant spacecraft, is around 145 AU away. Scientists believe it entered interstellar space, or the space between stars, on Aug. 25, 2012. Some of interstellar space is actually inside our solar system.
It will take about 300 years for Voyager 1 to reach the inner edge of the Oort Cloud and possibly about 30,000 years to fly beyond it.
Alpha Centauri is currently the closest star to our solar system. But, in 40,000 years, Voyager 1 will be closer to the star AC +79 3888 than to our own sun.
The Voyager spacecraft were built and continue to be operated by NASA''s Jet Propulsion Laboratory, in Pasadena, Calif. Caltech manages JPL for NASA. The Voyager missions are a part of NASA''s Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate at NASA Headquarters in Washington. For more information about Voyager, visit http://www.nasa.gov/voyager and http://voyager.jpl.nasa.gov.