Since reporting on the 2012 doomsday issue, a lot of attention has been directed to the Sun with all kinds of activities, which are believed to cause doomsday in the doomsday theory which is now proven wrong.

The proof is, we can still read this article, right? Many films, one of which is titled 2012, have described their suspicions of an apocalypse, such as the flares of the Sun that burn the Earth, the flow of neutrinos that heat up the Earth's core, causing the Earth's surface to flutter, and much more.

On August 1, 2010, almost the entire Earth-facing side of the sun erupted in a tumult of activity. This image above from the Solar Dynamics Observatory of the news-making solar event on August 1 shows the C3-class solar flare (white area on upper left), a solar tsunami (wave-like structure, upper right), multiple filaments of magnetism lifting off the stellar surface, large-scale shaking of the solar corona, radio bursts, a coronal mass ejection and more. Summary wikipedia source

Described a terrible and terrible picture of the solar storm, which is said to be capable of causing global scale destruction on Earth.

Photographs of solar activity observed by NASA's twin Solar Dynamic Observatory (SDO) satellites that surround the Sun. There are solar flares that are sprayed by the Sun and also the parts that make up the sunspot.

But, is it true that the storm of the Sun is so terrible? In fact, no!
Solar storms that are still normal so far are still far from the terrible words 'doomsday'. What is exploded by the Sun, often, only "pollutes" the space around the Sun.

Only explosions that are large enough to be able to throw so much mass into the planets, and need the right direction also so that the occupied mass can reach Earth. Maybe, before we need to understand first, what is meant by this solar storm.

Solar Storm is a popular term to indicate an increase in the magnetic activity of the Sun. However, don't imagine the Sun as a child who is very 'active' and jumps here and there.

Instead of jumping, the Sun does 'just' occasionally bursting out, spitting out various kinds of particles into space. When it reaches Earth, sometimes these particles will cause geomagnetic storms on Earth, and the term 'solar storm' itself is often used only to refer to this geomagnetic storm.

Then, how to find out whether the sun is active or not? The most practical way is to observe the number of spots on the surface of the Sun because Sun spots are easily observed.

Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection. Sunspots usually appear in pairs of opposite magnetic polarity.[2] Their number varies according to the approximately 11-year solar cycle. Sunsport Wikipedia source

With just a little Sun filter or paper to project the Sun's shadow, the image of the Sun along with a little 'zit' can be captured well. And indeed, Sunspots are related to the magnetic activity of the Sun, so that the number of Sunspots can be used to predict the strength of the Sun's activity in its period of activity.

An example of a comparison of the size of Sunspots with Earth. The earth is described as a black ball. The diameter of the Earth itself is around 12,750 km.

It all starts from the fact that the rotation of the Sun is differential. Not so related to calculus, the differential referred to here is that the rotation period of the Sun differs depending on latitude, about 25 days near the equator/ equator of the Sun, and 38 days near the poles of the Sun.

This is due to the shape of the Sun which is plasma gas, which is different from the solid surface of the Earth. Then, because the magnetic field is formed in the Sun, of course, there will be magnetic flux from the south pole to the north pole of the Sun. As the sun rotates, the magnetic fluxes will be carried away by the Sun's plasma, and after a long time, the flux lines will be twisted due to the faster rotational speed at the equator.

The principle of rotation of the Sun, there are parts that rotate more quickly to other parts.

Solar rotation varies with latitude because the Sun is composed of a gaseous plasma. The reason why different latitudes rotate at different periods is unknown. The rate of surface rotation is observed to be the fastest at the equator (latitude φ = 0°) and to decrease as latitude increases. The solar rotation period is 24.47 days at the equator and almost 38 days at the poles. Solar Rotation wikipedia source

In some places, this twisted magnetic flux line will emerge from the surface of the Sun, and will be seen as a dark area called Sunspots.

Even though it looks dark, sun spots have a Surface brightness (Moon, and it is dark because the temperature is relatively 'cooler' (although still in the range of 3000-4500 K) compared to the Sun (Usually 6000 K).

The low temperature in the Sun is related to the presence of strong magnetic flux in the area, as a result of the twisting. The existence of a strong magnetic flux against the flow with an effect similar to the effect of 'eddy current', the effect of electromagnetic induction which in some conditions is used as a brake on the train, roller coaster, even for cooking on an induction cooker. But, in this case the slowdown is the convection current from the Sun.

Every 11 years or so, this twisting causes a variety of other solar activities, such as solar flares or coronal mass ejection (CME), which occur mostly near the sun's spots. This is quite important from the activity of the Sun, especially the explosions: All are familiar with sunspots.

More familiar than flowers and bees that always share benefits. It is these two incidents that throw huge amounts of charged particles, known as the solar wind. This solar wind, along with all kinds of intrigue and rhythm, which is the main cause of various chaos that is usually associated with the active sun.

What's with this solar wind?

Wind of the Sun is not equated with the air flow that we are usually looking for is being sweltering. The solar wind is a collection of released particles and "summer" that are released that compile various explosions of the Sun's surface. Together with some of the Sun's plasma gas, these particles are thrown to various places throughout the solar system.

Schematic of the Earth's magnetosphere. The earth itself is between two blue areas. See the amount of magnetosphere of Earth's charm.

Where the solar wind intersects with a planet that has a well-developed magnetic field (such as Earth, Jupiter or Saturn), the particles are deflected by the Lorentz force. This region, known as the magnetosphere, causes the particles to travel around the planet rather than bombarding the atmosphere or surface. The magnetosphere is roughly shaped like a hemisphere on the side facing the Sun, then is drawn out in a long wake on the opposite side. The boundary of this region is called the magnetopause, and some of the particles are able to penetrate the magnetosphere through this region by partial reconnection of the magnetic field lines. Solar wind wikipedia source

The Simple description of the effects of solar activity on the Earth. Long story short, come the charged particles to Earth, usually within 3-4 days. It might feel horrible right away, imagining so many particles will come crashing into the Earth.

However, Earth already has a natural protector that can filter the particles so as not to rain on the Earth and give terror to its inhabitants who have been accustomed to engaging in peace. The 'Protector' is now named the Earth's magnetosphere, or also known as the "van Allen belt", according to the name of the inventor.

This magnetosphere, called from the word (said magnet and spherical ball), is a globe that surrounds the Earth along with all humans on its surface, whether it is lunch, brushing their teeth, or is nagging neighbors that are not clean in cleaning garbage. However, the shape is indeed not spherical due to the presence of the solar wind.

Reffrence:

Summary wikipedia source

Sunsport Wikipedia source

Solar Rotation wikipedia source

Solar wind wikipedia source

---

Follow - Resteem and Upvote My Post Thank You For Visiting, Reading & Best Regards

-------------------@sward--------------------