Elliptical Constituents. Those increases and decreases in tidal heights and intervals that are due to elliptical curve of Moon's orbit around Earth.
Ellipticity. Alternative name for 'Compression of Earth's axis'.
Elmo's Fire. Corposant. 'St. Elmo's Fire.'
Elnath. Star Tauri. S.H.A. 279°; Dec. N29°; Mag. 1-8.
Elongation. Distance of Moon, or planet, from Sun, when measured in celestial longitude. Elongation of metal is increase in length when due to tensile stresses; also applied to the maximum amount that it will increase without fracture.
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