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celestial longitude
noun
, Astronomy.
- the angular distance of a point on the celestial sphere from the great circle that is perpendicular to the ecliptic at the point of the vernal equinox, measured through 360° eastward parallel to the ecliptic.
celestial longitude
noun
- the angular distance measured eastwards from the vernal equinox to the intersection of the ecliptic with the great circle passing through a celestial body and the poles of the ecliptic Also calledecliptic longitude
celestial longitude
- The position of a celestial object east of the vernal equinox along the ecliptic . Celestial longitude is measured in degrees eastward from the vernal equinox (0°) to the point where a great circle drawn through the object and the poles of the ecliptic intersects the ecliptic.
- Compare celestial latitudeSee more at ecliptic coordinate system
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Example Sentences
On the other hand, celestial longitude and latitude are referred, not to the equator, but to the ecliptic.
From Project Gutenberg
Celestial longitude is the distance of a body from the vernal equinox measured on the ecliptic.
From Project Gutenberg
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