- Meteorology: A summer of records will lead to a warmer autumn than usual
We say goodbye to the summer, a season that has set records for being warmer and drier than normal despite heavy torrential rains and Google has wanted to dedicate its traditional doodle to the new station.
Autumn will begin this September 23 at 9.50 am on the Peninsula, as reported by the National Astronomical Observatory, which depends on the National Geographic Institute and adds that it will last 89 days and 20 hours, until December 22 begins winter.
According to the Observatory, throughout the autumn Mars will be visible at dawn and after sunset, Venus, Saturn and Jupiter will be seen. In addition, on November 11 there will be a transit of Mercury ahead of the Sun that can be seen in America, Africa and Europe and, also from Spain.
This transit did not take place since May 9, 2016 and after this November 11 it will not be repeated until November 13, 2032. Transits are the apparent passage of a planet ahead of the surface of the sun. From a planet, according to the IGN, you can only see the transits of the innermost planets to it in the solar system. Earth observers can see the transits of Mercury about thirteen times per century and those of Venus, about thirteen times per thousand years.
For a transit to occur, it must occur that the lower conjunction of the inner planet (that is, when said planet passes between the Earth and the Sun) occurs when it is in one of its orbital nodes, those points of its orbit where it crosses the Earth's orbit plane.
The IGN adds that only in that case, Sun, planet and Earth will be practically in a straight line and you can see the planet pass in front of the Sun's disk.
In the case of Mercury, transit can occur if the lower conjunction occurs for about two days before or after its passage through the descending node, which takes place around May 8, and for about four days before or after its passage by the ascending node, which takes place around November 10. Thus, transits are twice as frequent in November as in May.
On November 11 it will be visible in its entirety in South America, in Central America, eastern North America, the westernmost tip of Africa and in the Canary Islands. The beginning of the transit can be observed from western Asia, Europe and Africa and the end from North America and the Pacific Ocean. In total the phenomenon will last 5 hours and 29 minutes.
RAIN OF STARS
Also, during the fall you can observe several episodes of starfall. The first one, the Draconids, will occur between October 6 and 10 and the maximum observation will be on day 8.
The Orionids will take place between October 2 and November 7, although their maximum observation will arrive on October 18. The third of the three star showers will be the Leonids, which will begin on November 7 and end on November 30 and its maximum will be on November 17.
Finally, at the end of the season, the Geminids can be observed between December 4 and 17 and the maximum observation day will arrive on December 14.
According to the criteria of The Trust Project
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