subsolar point


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subsolar point

(sub-soh -ler) See substellar point.

subsolar point

[¦səb′sō·lər ′pȯint]
(astronomy)
The sun's zenith geographic position at any particular moment in time.
References in periodicals archive ?
At the moment of Saheki's observation, [D.sub.e] and [D.sub.s] (the latitudes of the subEarth and subsolar points, respectively) were small and fairly similar, the data implying a reflector at lat.
A specular reflection from brine pools or a sheet of ice was also considered, but the viewing geometry seemed all wrong --Saheki's flare was seen far from the subsolar point, the location on Mars where the Sun would appear at the zenith.
In addition, this visualization shows the moon's orbit position, sub-Earth and subsolar points, and distance from Earth at true scale.