Stellar bow shocks
type: Concept
broader: Heliosphere

Heliosheath
type: Concept
broader: Heliosphere

Stellar wind bubbles
type: Concept
narrower: Heliosphere

Solar system
type: Concept
narrower: Heliosphere

Heliopause
type: Concept
broader: Heliosphere

Astrosphere interstellar medium interactions
type: Concept
related: Heliosphere

Termination shock
type: Concept
broader: Heliosphere

Heliosphere
type: Concept
narrower: Heliosheath
narrower: Stellar bow shocks
narrower: Heliopause
narrower: Termination shock
definition: The vast, three-dimensional region of space around the Sun filled with the solar wind and the remnant of the solar magnetic field carried in it. It is bounded by the heliopause, which is estimated to be 100 astronomical units or more from the Sun. The radius of the heliosphere is expected to vary with the solar cycle. The heliosphere may be very elongated owing to the presence of an interstellar wind of neutral hydrogen flowing from the direction of the Galactic center.
broader: Solar system
broader: Stellar wind bubbles
modified: 2020-11-09T16:15:08.038Z
modified: 2020-11-09T16:14:57.453Z
contributor: AAS Frey.Katie
related: Astrosphere interstellar medium interactions