File:PIA17046 - Voyager 1 Goes Interstellar.jpg
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[edit]DescriptionPIA17046 - Voyager 1 Goes Interstellar.jpg |
English: 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. |
Date | |
Source | http://photojournal.jpl.nasa.gov/catalog/PIA17046 |
Author | NASA / JPL-Caltech |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:24, 31 January 2023 | 5,432 × 3,025 (3.37 MB) | Satdeep Gill (talk | contribs) | Kuiper belt is between neptune and termination shock. Reverted to version as of 05:55, 18 September 2013 (UTC) | |
21:49, 2 January 2023 | 5,432 × 3,024 (6.37 MB) | HâlitM (talk | contribs) | Moved the 'Kuiper belt' text above the line | ||
23:06, 28 December 2022 | 5,432 × 3,025 (6.37 MB) | HâlitM (talk | contribs) | Added the 'Kuiper belt' text | ||
05:55, 18 September 2013 | 5,432 × 3,025 (3.37 MB) | WolfmanSF (talk | contribs) | User created page with UploadWizard |
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