Search results
Results From The WOW.Com Content Network
The Jewish Passover usually falls on the first full moon after the Northern Hemisphere vernal equinox, [19] although occasionally (currently three times every 19 years [citation needed]) it will occur on the second full moon. [20] The Christian Churches calculate Easter as the first Sunday after the first full moon on or after the March equinox ...
Vernal equinox and autumnal equinox: these classical names are direct derivatives of Latin (ver = spring, and autumnus = autumn). These are the historically universal and still most widely used terms for the equinoxes, but are potentially confusing because in the southern hemisphere the vernal equinox does not occur in spring and the autumnal ...
The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year, the September equinox may occur from September 21 to 24. At the equinox, the Sun as viewed from the equator rises due east and sets due west ...
The first point of Aries, also known as the cusp of Aries, is the location of the March equinox (the vernal equinox in the northern hemisphere, and the autumnal equinox in the southern), used as a reference point in celestial coordinate systems. In diagrams using such coordinate systems, it is often indicated with the symbol ♈︎.
What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code
The data in red show the polar point in past epochs and the constellation the vernal equinox was in at that time. The plane of the ecliptic is the plane described by the apparent motion of the Sun against the starry background. It is the Earth's orbital motion about the Sun which causes this apparent motion to occur.
The equinox moves with respect to the perihelion (and both move with respect to the fixed sidereal frame). From one equinox passage to the next, or from one solstice passage to the next, the Sun completes not quite a full elliptic orbit. The time saved depends on where it starts in the orbit.
Tekufat Nisan, the vernal equinox, when the sun enters Aries; this is the beginning of spring, or "eit hazera" (seed-time), when day and night are equal. Tekufat Tammuz, the summer solstice, when the sun enters Cancer; this is the summer season, or et ha-katsir (harvest-time), when the day is the longest in the year.