precession of the equinoxes
(nautical) Alternative form of seacock / The black-bellied plover, Pluvialis squatarola. / A gurnard, such as the European red gurnard (Trigla pini).
The slow westward shift of the equinoxes along the plane of the ecliptic, resulting from precession of the earth's axis of rotation, and causing the equinoxes to occur earlier each year
Of, or pertaining to neopaganism
A mixture of metals having a melting point lower than that of any of its components. Examples are lead-tin solder, cast-iron (a eutectic mixture of iron and carbon), copper-silver eutectic (silver ...
天文学者たちは、地球の自転軸の歳差によって黄道面に沿って春分点と秋分点が西へとゆっくり移動し、毎年それらの分点がやや早く訪れる現象である春分点の歳差運動を研究して、星々の位置が何千年にもわたってどのように変化するかを理解しようとしている。
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