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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 March equinox is known as the vernal equinox (or spring equinox) in the Northern Hemisphere and as the autumnal equinox (or fall equinox) in the Southern Hemisphere. [8] [7] [10] On the Gregorian calendar at 0° longitude, the northward equinox can occur as early as 19 March (which happened most recently in 1796, and will happen next in ...
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 ♈︎.
The spring, or vernal, equinox occurs Tuesday, March 19, at 11:06 p.m. ET. This equinox happens when the sun, traveling from south to north, crosses the celestial equator, an imaginary plane that ...
An equinox is a moment in time and space when the sun is positioned directly above the Earth’s equator, which happens just twice a year on the vernal and autumnal equinoxes.
The spring equinox—aka the vernal equinox or simply, “the first day of spring”—is coming up this Saturday, March 20th. In the Northern Hemisphere, this means that the sun crosses over the ...
The equinox which occurs near the first day of spring (with respect to the North hemisphere) is called the vernal equinox. The vernal equinox can be used as a principal direction for ECI frames. [4] The Sun lies in the direction of the vernal equinox around 21 March.
The Met Office explains the difference between meteorological spring and astronomical spring