gravisphere

grav·i·sphere

 (grăv′ĭ-sfîr′)
n.
The spherical region of space dominated by the gravitational field of a celestial body.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
gravisphère
References in periodicals archive ?
This is a neutral gravisphere and its order of magnitude results from the value of the dilatational mass.