heliopause

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Related to heliopauses: Bow shock, interstellar, termination shock

heliopause

(hee -lee-oh-pawz) See heliosphere.

heliopause

[′hē·lē·ə‚pȯz]
(astronomy)
A shock front about 50 astronomical units from the sun, where the thermal pressure of the interstellar gas which surrounds the solar system overcomes the pressure of the solar wind, which is mostly ram pressure due to its high-velocity flow.