solar apex

American  

noun

Astronomy.

1. the point on the celestial sphere, near Vega, toward which the solar system is moving relative to the visible stars.

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solar apex British  

noun

1. another name for apex

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Etymology

Origin of solar apex

First recorded in 1870–75

Example Sentences

Several investigations tend to show that the fainter the stars are, the greater is the declination of the solar apex.

From Astronomy: The Science of the Heavenly Bodies by Todd, David Peck

While the right ascensions of the solar apex as given by the different investigations have been pretty uniform, the declination of this point has shown a rather wide variation not yet explained.

From Astronomy: The Science of the Heavenly Bodies by Todd, David Peck

By a study of the proper motions assigned by Maskelyne to the brighter stars, Herschel was able to define the position of the solar apex with an astonishing degree of accuracy.

From Sir William Herschel: His Life and Works by Holden, Edward Singleton