Scientists found mysterious hot spots in a red supergiant star. Astronomers submitted the photo of an external layer of the atmosphere of a Betelgeuse star. It is the red supergiant next to Earth. It is very bright star located in constellation of Orion, which is the semiregular variable star which shine changes from 0,2 up to 1,2 star sizes and on the average makes near 0,7m. Red color of a star is easily noticeable at supervision by naked eye. The new photo of this star opens secrets of structure of substance, which proceeds from a star. In the photo on the right is visible the Betelgeuse star and her orbital circles. The photo was made by the camera of a radio telescope of MERLIN of Jodrell Bank Observatory. The Betelgeuse star is in 1000 of times massive from our Sun, but at distance of 650 light years from Earth, it still looks as a small point. In spite of the fact that it is a cold pro-evolving star, scientists found on it strange hot spots.
Strong flash on the Sun, occurred on Thursday, can cause a magnetic storm on Earth – flashes of such class wasn’t observed since November of last year. Flash was accompanied by emission of solar substance, and satellites recorded increase of a stream of protons to the level dangerous to space equipment about what experts already received the prevention. Flash will cause on Earth a strong magnetic storm. Meteodependent people, will feel emission consequences already today, and the main blow on a magnetosphere of our planet is expected in 1\2 days. Solar flashes, depending on the power of x-ray radiation, share on five classes: A, B, C, M and X. The minimum class A0.0 corresponds to radiation power in Earth orbit in 10 nanowatts on square meter. Upon transition to the following letter capacity increases ten times. Present flash of the class M6.5 was recorded in the morning of April 11 practically in the center of a solar disk.
The NASA spacecraft, which constantly watches the Sun, at this time made an amazing image. In the image, the solar prominences rises and the magnetic field holds them over the surface.
People could observe the solar prominences for a long time, the first mention was in 1185, and it is connected with a total solar eclipse. Studying the solar prominences began in 1842.
The solar storm began on March 16 and was recorded by Observatory of solar dynamics (Solar Dynamics Observatory, SDO). By the NASA spacecraft the scientists receive perfect pictures of the Sun in high resolution. The solar prominences started rising and breaking up to parts in graceful floating style within less than four hours. The sequence was removed in extreme ultra-violet light. It seemed that the big cloud of particles soars over a surface. At this stage the Sun is in the middle of a 11-year cycle of activity. The current cycle is designated as the 24th cycle, it is expected that the peak of activity will be observed this year.
Astronomers have previously detected superflares from a variety of star types, which release bursts that have 10 to 10,000 times more energy than the largest solar flare ever detected from our sun. Scientists wanted to know how common these outbursts might be from stars like the sun, those with masses and temperatures similar to our star. Even normal solar flares can damage satellites, endanger astronauts and wreak havoc on electrical grids on Earth, suggesting that superflares might be catastrophic to life on Earth.
According to NASA scientists huge sunspot that dwarfs the Earth is unleashing a series of powerful solar flares as it moves across the surface of the sun. The sunspot AR 1476 was detected by space telescopes on May 5. The huge sunspot is 60,000 miles (100,000 kilometers) across, so large that when it was first seen in views from NASA’s Solar Dynamics Observatory spacecraft, mission scientists dubbed it a “monster sunspot.”
A most powerful solar flare erupted from the sun on March 4 sending an explosion of plasma and charged particles hurtling toward Earth. Flares occur when accelerated charged particles, mainly electrons, interact with the plasma medium. Solar flares, depending on the power of X-ray, are classified as A, B, C, M or X. According to the Space Weather Prediction Center operated by the National Weather Service the latest flare was an X1.1-class solar flare and exploded from the surface of the sun at 11:13 p.m. EST (0413 GMT March 5).
A NASA spacecraft has captured stunning footage of on February 21 partial solar eclipse, which left our star looking briefly like a huge celestial Pac-Man. NASA’s Solar Dynamics Observatory (SDO) snapped a video and photos of the solar eclipse from its lofty perch 22,000 miles (36,000 kilometers) above Earth. The partial solar eclipse provided more than just pretty pictures, however. During its travels, the moon briefly blocked sunspot AR1422, an active region that is blasting strong ultraviolet emissions into space. According to researchers this caused a dip in the EVE (extreme ultraviolet) output and may allow scientists to calibrate the energy emitted by the active region.
The sunspots are the dark and magnetic blemishes on the surface of our nearest star. These sunspots are thought to occur when increased magnetic activity inhibits the flow of heat onto a patch of the sun, causing it to darken. But the ultimate source of that boost of magnetism has remained unclear. Now researchers say the formation of hydrogen molecules may decrease the pressure on certain areas of the sun’s surface, allowing runaway magnetic fields to form and intensify. The sun is mostly made of hydrogen, the element makes up 90 percent of the sun’s mass, while helium contributes about 10 percent, and only 0.13 percent is everything else.
The gigantic sunspot was observed on the sun by NASA’s Solar Dynamics Observatory on November 3, 2011. This is one of the largest sunspots in years.