Spring Equinox: Google greeted you with a happy scribble

The spring equinox has arrived for the northern hemisphere and the search engine Google celebrates it with a doodle. In Mexico, the equinox will start this March 20th at 3:48 pm

Equinox of Latin, aequinoctium, which means "equal night". This is the moment when the axis of The earth is perpendicular to the sun's rays. There are only two days a year (in March and September) where it is possible to enjoy same amounts of hours light and darkness.

It means that the The sun will rise in the east to hide in the west and reach the zenith, which is the highest point of the sky relative to the observer, which is only 90 degrees. It is also called the first day of spring.

What makes the first day of the spring arrival special, is that the night sky will shine more than usual, it will be possible to attend the full moon and this is the first time, since 1981 and 2000, that the spring equinox and the super-moon match the same day.

This supermoon is special because it means that the moon will appear larger than normal because of its proximity to the land.

The spring equinox is being celebrated another day, it can happen on March 19, 20 or 21. Change from year to year Bear in mind that the Earth does not take exactly 365 days to make a complete return to the Sun.. That's why every four years a leap daytherefore, the date of the equinox varies.

If you live in the Southern hemisphere of planet Earth, you can safely observe that the arrival of the solstice is celebrated.

History of the accuracy of the equinoxes

He is credited with discovering the accuracy of the equinoxes to the astronomer Hipparchus of Nicaea, to be the first to give precision to the accuracy of the Earth with an approximation of days. Hipparchus is known to perform division of the day in 24 hours of equal duration.

The exact dates you used are not known, but the astronomical observations attributed to Hippo of Claude Ptolemy dating from 147 to 127 a. C.

There will be a Full moon on March 21, 2019 and will be the first of four full moons which will be presented between the spring equinox and the June solstice.

19 years ago (in 2000), there was a coincidence of a super moon with the spring equinox. The next will be until March 2030.