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Jupiter’s opposition: how and when to see it in Mexico – El Sol de México

Next Monday, September 26, 2022, Jupiter will be in opposition, that is, while the Sun hides in the west to start the nightat the other side of darlingto the east, opposite the Sun, Jupiter will appear, there is no loss, it is the brightest star and you will see it with the naked eye!

The huge planet It will travel across the sky at night. You will see it with the naked eye as a star of great brightness. But to have telescopeyou will see the bands of clouds of Jupiter and 4 of his 79 moons.

You can also read: NASA’s DART will collide with an asteroid, a test to defend Earth

Jupiter’s Opposition

Although the jupiter opposition occurs every 13 months, it is not always at the same distance from the Land. In this 2022, Jupiter it will be only 3,953 AU or 591 million km away. Being AU, the astronomical unit (AU, Astronomical Unit in English), is the average distance between the Earth and the Sun, 150 million km.

The distance at which it will be Jupiter of the Land during opposition is a distance not seen in 70 years. Therefore, the gigantic planet It will shine a little brighter than usual. But that shine will not only happen that day, Jupiter is already shining like never before and will continue to do so for weeks.

What is opposition Jupiter?

When we talk about oppositionwe generally refer to the opposition of a planetstar or the MoonWith respect to Sun.

The opposition is when the Sun is located on one side darling and on the other side appears the other object, in this case Jupiter. That is, Jupiter Land and the Sun they are aligned.

The opposition most common and that happens every month, is that of the Moonwhen our natural satellite is found in Full moonis the opposition of the Moon With respect to Sun.

Upcoming oppositions

In the remainder of 2022 we have two oppositions interesting:

Uranus, November 9. It will be found in the aries constellation and to observe it it will be necessary minimum binocularsit will be better to be in a place with little Light pollution.

Mars, December 8. The red planet is seen naked eye. Stands out for its color red. It will be found in the bull constellationwhere by the way, its brightest star is aldebarana Red Star.

For the oppositions of Uranus Y Marsthe Moon will interfere, since November 8 will be Full Moon, yes, the Moon in opposition. The Moon will be on the same side as Uranus. By the way, on November 8th we will have lunar eclipsewhich will be visible in Mexico.

Similarly, a month later there will be Full moon, on December 7. the moon and Mars they will not be far, seen in the sky of the Land.

It is recommended that for both oppositions, Uranus Y Marswait a day or two for the Moon advance and can observe the planets with comfort.

Galileo’s night

Jupiter has the honor of being the first planet observed with telescope by Galileo Galilei. In Siderius Nuncius “The Message From The Stars”Galileo wrote that on January 7, 1610, he observed with his telescope o crystal cannon. He pointed to Jupiter and observed three little stars close to planet located in a straight line, little stars not visible to the naked eye, two were to the east of Jupiter and one to the west.

The next night, the three stars were located to the west, Galileo deduced that Jupiter had passed them. In the following nights Galileo realized that there were four and not three, and that they also changed position on both sides of Jupiter, always on the same straight line. After meditating on it, he related that movement to that of Mercury Y Venus around the Sun.

He assumed that he was observing satellites of Jupiteras the Moon of the Land. Therefore, he considered the statement to be true. Nicolaus Copernicuswhat is he Sun the one in the center of the Solar system and the planets around it. Since then Galileo defended what Copernicus said, a fact that brought him being judged by the Churchfor violating the established “order”.

the gigantic planet

Jupiter It is the fifth planet Solar system. It takes 11.8 years to go around the Sun. It is the second brightest planet behind Venus. Its mass is equal to 318 Land and inside it fits 1321 Earths. Their diameter is from 11 Earths. Despite its enormous size, it rotates very quickly, in just 9 hours, 50 minutes and 30 seconds, the Earth takes 24 hours to complete. rotation.

Jupiter features a huge anticyclone called the Great Red Spotthe size of three Land or less. Recent observations indicate that the anticyclone is shrinking in size.

Galilean satellites

Take advantage of the opposition Jupiter to observe with telescope the clouds of the huge planet and 4 of its 79 moons, those discovered by Galileo: Io (io), Europe, Ganymede Y callistobaptized by simon mariuswho published in 1614, Mundus Iovialiswhere he states that he discovered them days before Galileo.

The names correspond to: the lovers of Zeus: yo, Europe Y callistoand the cupbearer of the gods, Ganymede.

IO

The Moon closest to Jupitersimilar in size to Earth’s Moon. It has a hot iron core, which generates a magnetic fieldhas an intense volcanic activitymore than 400 volcanoes assets release carbon dioxide sulfur, there are lava flows, active calderas, plumes and sulfur lakes. There are great clouds of sulfur on Io, these conditions create an unbearable pestilence for the human being.

Europe

It is the dream world for search for life scans. It is the body in Solar system more likely to support life, even more than Mars. Its size is similar to Moon land. Europe is a frozen world, under the layer of ice there is an ocean of liquid water. It has a rich atmosphere oxygen.

Ganymede

It is the largest moon in the Solar systemis greater than the Moon terrestrial and MercuryYes Ganymede will orbit the Sun and not to Jupiterit would be a planet.

It is a very familiar world. In Ganymede exist mountains, valleys, ice, tectonic fractures Y rivers dried from wash. Ganymede looks more like the Land that Venus either Mars. Has a atmosphere rich in oxygen.

callisto

is the second Moon largest of Jupiter and the third in the Solar system.

He is believed to have a rocky core since it lacks magnetic field. Its surface is stone Y icehas been detected carbon dioxide, silicates Y organic compoundshas a faint oxygen and carbon dioxide atmosphereit is believed that there is a Aquifer mantle at a depth of 100 km.

To facilitate your observationwe add a calendar of the position of the moons of Jupiterfrom September 21 to November 1, so that day by day, you know which ones you are observing.

Take advantage of the opposition and the great brilliance of Jupiter to marvel at him planet largest of our Solar system.

german@astropuebla.org

Originally posted on The Sun of Puebla

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