inertial space


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inertial space

[i′nər·shəl ′spās]
(navigation)
A coordinate system or frame of reference defined with respect to the stars whose apparent positions relative to surrounding stars appear to be fixed or unvarying for long periods of time.
References in periodicals archive ?
The freely falling mirror was isolated by being in inertial space; the long-period isolator served to also locate the reference mirror in inertial space.
Hanging the reference "mirror" of the interferometer on such a spring serves to position it--as is the falling object-in vibration-free inertial space.