heliosphere

Noun
  1. The region inside the heliopause containing the sun and solar system (synset 108518586)
    is a type of: part, region - the extended spatial location of something
    has: solar system - the sun with the celestial bodies that revolve around it in its gravitational field
    is a part of: milky way, milky way galaxy, milky way system - the galaxy containing the solar system; consists of millions of stars that can be seen as a diffuse band of light stretching across the night sky

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