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We celebrate winter 2020 and the great marriage: Jupiter, Saturn, Earth e. Winter It has the current Google doodle, on the occasion of the Winter Solstice and the Great Coupling of the planets.
The week begins with two astronomical phenomena, the winter solstice and the great conjugation of Jupiter and Saturn that will look like a great star in the night sky.
Winter from today
At noon on Monday (12/21) at 12:02 Greek time, the Sun will be on the winter solstice and therefore will typically start this winter in Greece and the northern hemisphere in general.
The night of the solstice and the following will be and the largest of the year in duration. By contrast, summer will begin in the southern hemisphere, with the day at its peak.
When the Sun reaches its autumnal equator in September, day and night are roughly equal, but then night gradually increases at the expense of day. When the sun passes the winter solstice, begins to rise higher and higher in the sky again, with the result the day to recover the lost “ground”, until at the spring equinox, light and darkness again last almost equal.
the Winter Solstice it does not always “fall” on the same date, but instead oscillates between December 20 and 23, with the most likely dates being 21 and 22. The last time the winter solstice fell on December 23 was in 1903 and it will not occur again before 2303. These calendar fluctuations are due to the Gregorian calendar.
Winter solstice December 25 no longer happens, as in the time of Christ, but a little earlier, because it has replaced the old Julian Calendar, which was introduced by Julius Caesar in 44 BC. C. and that he had established the winter solstice on December 25, but lost one day every 128 years. In 1582, Pope Gregory XIII introduced a new calendar, named after him (Gregorian), which loses only one day in its 4,000 years.
The Sun was worshiped by the ancients as a god and almost all ancient peoples established various festivals in his honor, from the Scandinavians and Iranians to the Mayans and the Incas. Almost everywhere, the most important celebrations took place during the winter solstice, which was considered the celebration of the birth of the Sun, which also marked the beginning of the new year. Prehistoric monuments like Stonehenge in Britain are believed to have been associated with recording the movements of the Sun in the sky.
For the Romans the celebration of the “invincible Sun” on December 25 was fundamental, when it was celebrated that the Sun began to rise in the sky again and that is how the days grew. The first Christians of Rome, who secretly went to its catacombs, decided to celebrate the birth of Christ on the same date, December 25, when the Romans celebrated their own festivals of Saturnalia.
Coupling Jupiter – Saturn
Astronomers are preparing for a “divine spectacle”, as the Jupiter and Saturn they will get so close to the night sky something that has to happen almost the last 400 years.
The phenomenon will begin on Monday, when the two largest planets in the solar system will appear side by side in a “Wonderful pairing” above the horizon immediately after sunset.
In the distant past, such alignments of the planets were thought to be forerunners of the future, from great fires and floods to the birth of Christ and the total collapse of civilization.
The orbits of the two huge planets get closer every 20 years, but it is impossible to see this with the naked eye because it occurs during the day, while it is less impressive since the planets do not get very close to each other. This year will be the closest pairing since 1623.
The planets will get so close that they will appear as one very bright star.
It is observed that they will realign in … 2080.
The great conjugations occur when Jupiter, which surrounds the sun in the shadow of less than 12 years, and Saturn, which orbits every 29.5 years, align directly with the Earth. The phenomenon coincides with Winter Solstice, when the tilt of the northern hemisphere away from the sun produces the shortest day and longest night.
Historical records trace the interest of couples from the 8th century at least. But cosmic links have fascinated scientists for many centuries. The German Astronomer Johannes kepler observed a magnificent coupling in 1603 and a supernova the following year. Surpass the brightest stars in the sky. Kepler estimated that another magnificent coupling must have taken place in 7 BC And this, he speculates, may have preceded a supernova, now known as the Christmas star.
Of course, many modern scientists do not agree with this.
«These conjunctions are great facts for astrologers, but scientifically they will have no effect on Earth.Matthew Bate, a professor of theoretical astrophysics at the University of Exeter in London, told the Guardian that he planned to observe the phenomenon with a telescope from the rooftop of the university.
As it says, with an ordinary, about small telescope, it will be possible to see Jupiter and Saturn at the same time.
At medium magnification, Jupiter’s four largest satellites, Saturn’s rings, and its largest moon, Titan, should also be visible.
Today’s doodle for xemonation and great coupling
What are they scrawl
the scrawl created by Google to celebrate events, anniversaries and birthdays of artists, scientists, musicians and other special personalities. Your team of doodle designers and engineers Google (known as doodlers) is always looking for new and interesting ideas.
First scribble was created in 1998, when its founders Google Larry Page and Sergey, in order to inform users that they will get lost (they wanted to go to a festival in the Nevada desert), they placed the drawing of a figure on a bar behind the second “o” of the company logo , thus informing users who are out of the office. I liked the idea and since then it has been consolidated and enriched.
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