Meaning & use
Astrosphere
Last updated
The region of space around a star that is dominated by particles of its stellar wind, analogous to the sun's heliosphere.
See it in a sentence
Astronomers studied how the star's astrosphere interacts with the surrounding interstellar medium.
A shrinking astrosphere can expose a planetary system to more cosmic radiation.
A note on using this word
The term "astrosphere" was coined by analogy with "heliosphere," which specifically describes the sun's equivalent region.
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