Labor Day has come and go, and the school is back. Although the leaves have not started turning yet, autumn is driving here. The official arrival of this season is fall, the equinox takes place in the northern hemisphere in September.
after Hot summerFor many, the vernal equinox marks a welcome change in the season. But what is the vernal equinox? It’s all about the Earth and its relationship to the Sun. This is how to understand, visualize and celebrate autumn.
When is autumn fall?
This year, the fall spring equinox in the northern hemisphere will fall on Monday, September 22. If you want to be more specific and mark it on your calendar, mark it as PT at 11:19 am.
The dates may vary slightly depending on the year, but it is always this time of September. The next vernal equinox in the Northern Hemisphere takes place on March 20, 2026, which will mark the beginning of spring.
What is the vernal equinox in September like?
No matter where you are on the earth on the vernal equinox (whether it is spring or vernal equinox, depending on the hemisphere you live in), the sun will Close to the east, close to the west Make it as foolproof compass as possible. Walk outside to see the sunset and sunrise and record the landmarks before the sun. In this way, you will always know what the West and the East are.
The spring equinox in these two years is also the fastest sunrise and sunset of the year, and it only takes a few seconds to appear and disappear. That’s because it’s the steepest angle the sun rises and sets in the year.
What is autumn?
The meaning of the vernal equinox lies in its name: a combination of Latin words and night.
“Only twice a year, the Earth’s axis neither tilts towards nor deviates from the Sun, resulting in almost ‘equal’ sunlight and darkness,” The National Meteorological Administration said In the explanation of the season.
NASA illustrations show the angle of the earth’s inclination associated with the sun.
The earth rotates on the axis (imagine a line from the pole to the pole), while the planet has an inclination of 23.5 degrees. The tilt is what gives us the season. When the earth circles the sun around the sun, tilting means that some areas of the earth are more direct than others. In winters in the northern hemisphere (tilt towards the sun) and the southern hemisphere (dial off the sun), this is how summer is. During the vernal equinox, the sun shines directly on the equator and gives love to both hemispheres.
Other planets that also tilt on their rotation axis also experience the vernal equinox. However, the time scales may vary greatly. The vernal equinox on Saturn only appears every 15 years on Earth. This means each season lasts for more than seven years on Saturn. On Neptune, it’s even the season in recent decades. We can thank the relatively short seasons on Earth.
How is Equinox different from the winter solstice?
This National Weather Service graph shows the inclination of the Earth, how it orbits the Sun, and when it appears in the Northern Hemisphere.
Like the vernal equinox, the dissolvers are associated with the tilt of the earth, but are in extreme states both day and night. The winter solstice is the shortest day of the year, while the summer solstice is the longest. This year, the winter solstice in the Northern Hemisphere will be Sunday, December 21.
See the vernal equinox of the space
Watching Earth’s satellites in orbit has a unique view of the vernal equinox. NASA Earth Observatory video shows how the Earth changes from space and the location of the sun’s light as the seasons change. This is a great way to visualize what happens during Earth’s orbit around the Sun.
How to Celebrate Autumn
Autumn means it’s time to take a autumn leaf sightseeing adventure.
Don’t like the vernal equinox eclipse or meteor. There isn’t a big wow moment when you see something spectacular. This fall looks like any other day, but it’s a convenient way to mark astronomical seasonal changes. You can announce everywhere: “This is the first day of autumn!” The way you celebrate depends on you. Here’s a tip: put on your favorite sweater, go to the scenic leaf drive, and have a pumpkin spice latte to drop in the welcome style.
