The boundary of the solar cavity is the heliopause, about fifty astronomical units from the sun, where the solar wind pressure is down to the tiny pressure between stars in our arm of the galaxy.
Source: tatoeba (2030640)
Heliopause
/ˈhi.li.əˌpɔz/
Synonyms for "heliopause" (3 found)
Ranked by relevance and common usage.
Closest matches (1)
Noun(1 words)
heliosphere boundary
Strong matches (1)
Noun(1 words)
heliospheric boundary
Related words (1)
Noun(1 words)
solar wind boundary
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
4 entriesMore specific
2 entriesedge of heliosphereheliosheath
Collocations
6 entriesheliopause boundaryheliosheath regioninterstellar mediumouter boundarysolar wind boundarytermination shock
Inflections
1 entriesDerivations
1 entriesSample sentences
3 total sentences available.
Scientists define the beginning of interstellar space as the place where the sun’s constant flow of material and magnetic field stop affecting its surroundings. This place is called the heliopause. It marks the end of a region created by our sun that is called the heliosphere.
Source: tatoeba (5322391)
The astronomer says scientists are now trying to figure out what’s on the other side of the heliopause, the boundary between our solar system and intergalactic space.
Source: tatoeba (10984204)