Printer Friendly
The Free Dictionary
983,055,008 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

heliopause

   Also found in: Encyclopedia 0.01 sec.
he·li·o·pause  (hl--pôz)
n.
The area in which the outgoing solar wind and the incoming plasma from interstellar space meet. It is the boundary of our solar system.
heliopause  (hl--pôz)
The region surrounding the solar system at which pressure from the outgoing solar wind equals the pressure from the interstellar medium (made up mostly of hydrogen and helium), and the solar wind can penetrate no further. It is considered to be the outer boundary of our solar system. See more at solar wind.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.heliopause - the boundary marking the edge of the sun's influence; the boundary (roughly 100 AU from the sun) between the interplanetary medium and the interstellar medium; where the solar wind from the sun and the radiation from other stars meet
boundary, bounds, bound - the line or plane indicating the limit or extent of something
?Page tools
Printer friendly
Cite / link
Email
Feedback
Add definition
? Mentioned in ? References in periodicals archive
 
We're in a race to see if we can get through the heliopause and truly into interstellar space while the craft still have the electrical power to observe what's out there.
Amazing voyager: 25 years of exploring space. (Earth science: solar ... by Science World
Guided by strong bursts of radio waves that Voyager 1 has detected since November 2002, scientists now calculate that the edge, known as the heliopause, resides between 153 and 158 times as far as Earth does from the sun.
Next stop, interstellar space: Voyager journeys to the edge of the ... by Cowen, Ron / Science News
Scientists calculate that by 2010, the venerable Voyager 1 and Voyager 2 craft, now more distant than Pluto and speeding rapidly toward the edge of the solar system, will cross the heliopause.
A place for the sun; exploring the solar neighborhood by Cowen, Ron / Science News
More results
 
Dictionary/thesaurus browser? ? Full browser
 
 
Dictionary, Thesaurus, and Translations
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.