A solar equinox is a moment in time when the Sun crosses the Earth's equator, which is to say, appears directly above the equator, rather than north or south of the equator. On the day of the equinox, the Sun appears to rise "due east" and set "due west".

Every planet in the solar system, apart from Mercury, is tilted on its axis of rotation. This means each planet has its own equinoxes and solstices. Venus and Jupiter have small axial tilts of 2.6* and 3.1 degrees, respectively.

The March equinox is the moment the Sun crosses the celestial equator—an imaginary line in the sky above Earth’s equator—from south to north. This happens on March 19, 20, or 21 every year. 10 facts about the March equinox. Equinox Local Time & Date

Equinox, either of the two moments in the year when the Sun is exactly above the Equator and day and night are of equal length; also, either of the two points in the sky where the ecliptic (the Sun’s annual pathway) and the celestial equator intersect.

At the September equinox, the sun is moving from north to south as it crosses above the equator. It’s bringing summer to the Southern Hemisphere and winter to the Northern Hemisphere. The 2025...

You may know that the solstices and equinoxes signal the changing of the seasons on Earth, but do you remember which is which? Are they just different names for the same thing? Actually, a solstice and an equinox are sort of opposites. The seasons on Earth change because the planet is slightly tilted on its axis as it travels around the Sun.

At the equator, the sun is directly overhead at noon on these two equinoxes. The "nearly" equal hours of day and night are due to refraction of sunlight or a bending of the light's rays that causes the sun to appear above the horizon when the actual position of the sun is below the horizon.

The Sun crosses the celestial equator on two occasions during the course of a year and these occasions are known as the equinoxes. At the equinoxes, at all places on Earth, the nights and days are of equal duration (i.e. 12 hours) hence the term equinoxes (equal nights).

1 day ago · The spring equinox lands at 5:01 a.m., the precise moment the sun's rays shine directly on the equator. Meteorologists actually consider March 1 the beginning of spring.

6 days ago · As we near the spring equinox, also known as the vernal equinox, on March 20, the Earth's magnetic field and solar wind align, creating an increased chance of seeing the colorful auroras in the ...