substellar point

substellar point
The point on the earth’s surface where a line joining a heavenly body to the center of the earth cuts the earth’s surface. It is the geographical position of the subpoint of the body and at any particular instant.

Aviation dictionary. 2014.

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  • substellar point — |səb+... noun Etymology: substellar from sub + stellar : the point on the earth s surface at which a particular star is in the zenith …   Useful english dictionary

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  • sub|point — «SUHB POYNT», noun. = substellar point. (Cf. ↑substellar point) …   Useful english dictionary

  • earthly position — earthly position, = substellar point. (Cf. ↑substellar point) …   Useful english dictionary

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