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KOMPAS.com – Aurora is a phenomenon of light in the upper atmosphere of the earth that generally occurs at both poles of the earth.
Reported National Geographicaurora is a natural display of light that shimmers in the sky, moves gently, and changes shape like a blown curtain.
Auroras are created when electrically charged particles called ions from the sun continue to flow from the surface of the sun, which is called the solar wind.
As the solar wind approaches Earth, it encounters a magnetic field that protects planet Earth.
In the ionosphere, solar wind ions collide with oxygen and nitrogen atoms that come from the Earth’s atmosphere.
The energy released during these collisions causes colorful halos around the poles, the lights we know as auroras.
Also read: What are Auroras? The following is the definition and process of its formation
Do other planets have auroras?
Shutterstock
aurora illustration.
Apart from Earth, several planets in the solar system, such as Jupiter, Saturn, Uranus and Neptune, have large atmospheres and magnetic fields, which can display auroras.
Auroras have also been observed on Jupiter’s moon, Io, where they are generated by the interaction of Io’s atmosphere with Jupiter’s strong magnetic field.
Quoted from page Space Place NASAthe aurora is not a phenomenon that only occurs on Earth.
As is known, Aurora occurs in the Earth’s atmosphere because it has a strong magnetic field and interactions between magnetically charged particles in the solar wind and gas molecules in the atmosphere.
If a planet has an atmosphere and a magnetic field, it can have auroras.
Atmospheric displays similar to the aurora have been observed on all the planets except Mercury due to its proximity to the Sun.
Also read: Get to know the Ionosphere, the Layer of the Earth’s Atmosphere that Reflects Radio Waves
Aurora on each planet
NASA/ESA/STScI/A. Schaller.
Illustration of aurora at Saturn’s south pole.
In line with that, reported the Aurora Zonethe aurora phenomenon on the planets, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune is created from almost the same process.
The magnetic and atmospheric dynamics of the planets are different so some have more intense auroras than others.
1. Aurora of the planet Mars
Auroras on Mars are thought to be caused by interactions between the solar wind and local magnetic fields on the planet’s surface.
Unlike Earth’s auroras, which occur mainly in the polar regions, Mars’ auroras can occur at lower latitudes, sometimes as far as 30 degrees to the south.
Also read: Getting to Know the Exosphere, the Layer of the Atmosphere Directly Bordering Outer Space
2. Aurora of planet Jupiter
Jupiter’s aurora are striking, much larger, and more intense than those on Earth.
This is caused by charged particles from the planet’s magnetosphere colliding with the atmosphere near the poles. Jupiter’s magnetic field is 20,000 times stronger than Earth’s.
3. Dawn of the planet Saturn
Auroras on the planet Saturn are also caused by interactions between charged particles and the planet’s atmosphere.
However, this phenomenon is not as intense as that which occurs on Jupiter because it has a weaker magnetic field.
Also read: Get to know the Mesosphere, the Layer of Earth’s Atmosphere with the Coldest Temperatures
4. Aurora on the planets Uranus and Neptune
Uranus and Neptune have weaker auroras than Jupiter and Saturn, and the auroras on these two planets are thought to be caused by interactions between the planet’s magnetic fields and the solar wind.
These planets are 1.8 and 2.8 billion miles from the Sun, respectively, so it’s no surprise that the auroras here are weak and infrequent.
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2023-04-26 00:00:00
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