Detecting black stains

Large black spots that appear on the Sun 10 times the diameter of the Earth are warned that can cause a strong magnetic storm.

>>>Discover a black stain 800,000 km long on the Sun.

If astronomers were eagerly awaiting to see the Japanese phenomenon in part last week, experts will be concerned this week when they detect a large black spot on the Sun, signaling a big storm from may land on Earth in the near future.

Accordingly, the experts discovered that it was signed as AR 2192 to appear on the East side of the Sun on October 17. This black spot is about 87,000 miles in diameter (140,000km - about 10 times the diameter of the Earth) - a "monster" size .

This sunspot is so big that amateur astronomers can observe it with conventional telescopes. However, the researchers warn, telescopes used to watch the sun's streaks need special filters to prevent permanent damage to the eyes during observation.

Suns are dark areas on the surface of the Sun. The surface brightness of dark spots is about 1/4 of the brightness of the surrounding areas (this brightness is dangerous to the human eye).

Sunspots can also cause extreme space storms.

The cause of the black spot is because their temperature is lower than the surrounding areas, a phenomenon caused by strong magnetic changes in the Sun.

Experts predict, this large sunspot will signal a massive storm from "pouring" to Earth. This storm contains billions of tons of gas emitted from the Sun's surface along with X-rays and ultraviolet radiation. This will greatly affect millions of people on Earth.

In addition to affecting the electricity network, communications or satellites flying around the Earth are also affected by the phenomenon of the solar storm.

Experts are now cornering all eyes to monitor the development of this frightening "monster" black spot.