Дополнение. 3 апреля. Солнечная активность возрoсла!
Угроза солнечных вспышек не только М-, но и Х-класса
Появились пятна - уделите более пристальное внимание своему здоровью. Доказано, что магнитным бурям подвержены абсолютно все люди. Но у одних -- защитные механизмы срабатывают лучше, у других -- хуже. Причины такой разницы ученым непонятны.
The Sun Always Moves ! Around AR2645 Taken by Sylvain Weiller on April 2, 2017 @ Jerusalem, Israel
http://spaceweather.com/
CHANCE OF FLARES: NOAA forecasters estimate a 60% chance of M-class solar flares and a 20% chance of X-flares on April 3rd as sunspot AR2644 continues to crackle with magnetic explosions. Extreme UV radiation from such flares can cause shortwave radio blackouts and other disturbances to the normal transmission of radio signals around the globe.
http://www.tesis.lebedev.ru/active_areas.html
№ 2644 N12 W65 19 Fkc 0450 17 057 Beta-Gamma
№ 2645 S10 W26 23 Ehc 0600 14 018 Beta-Gamma-Delta
Вчера на Солнце произошло 12 вспышек класса С и вышe, из них 5 вспышек класса М
На Солнце произошел двойной взрыв
]http://www.tesis.lebedev.ru/sun_flares.html
Сегодня на Солнце произошло 12 вспышек класса С и выше, из них мощные вспышки М-класса:
Вспышка балла M1.2 2644 03:56:00 04:05:00 04:12:00
Вспышка балла M5.8 0 17:19:00 17:29:00 17:34:00
THE SUN WAKES UP: Suddenly, solar flare activity is high. With little warning, sunspot AR2644 exploded on April 1st, producing an M4.4-class flare. That was the strongest solar flare of the year--for less than a day. The sunspot topped itself on April 2nd with a pair of M5-class explosions. This picture from NASA's Solar Dynamics Observatory shows the instigating flare on April 1st:
Flashes of extreme ultraviolet radiation, like the one shown above, have been ionizing Earth's upper atmosphere and altering the normal propagation of radio waves around our planet. There have been at least three significant shortwave radio blackouts affecting, especially, the Pacific and Indian oceans. (Blackout maps: #1, #2, #3) People who might have noticed these blackouts include ham radio operators and mariners using low-frequency rigs for communication at frequencies below 10 MHz.
At least two of the explosions hurled coronal mass ejections (CMEs) into space. So far there is no evidence that the clouds will hit Earth. This conclusion is preliminary, however, so stay tuned for updates.
http://www.tesis.lebedev.ru/active_areas.html
№ 2645 S11 W13 25 Ekc 0520 12 017 Beta-Gamma
Фотография солнечного ветра получена 02.04.2017 в 04:36 МСК в оптическом диапазоне инструментом LASCO/C2 на борту спутника SOHO
http://spaceweather.com/
THE SUN WAKES UP: Suddenly, solar flare activity is high. With little warning, sunspot AR2644 started exploding yesterday, producing an M4.4-class flare on April 1st followed by an even stronger M5-class flare on April 2nd. Here is the ultraviolet flash from the first explosion, recorded by NASA's Solar Dynamics Observatory.
UV radiation from the flare caused a brief shortwave radio blackout on the Pacific side of Earth: map.
People who might have noticed the blackout include ham radio operators and mariners using low-frequency rigs for communication at frequencies below 10 MHz.
The explosion also hurled a coronal mass ejection (CME) into space: image.
The cloud is not heading directly for Earth, but a glancing blow is possible in the days ahead. NOAA analysts are evaluating this possibility now.
NOTE: The source of this flare, AR2644, is not the big sunspot discussed below. While forecasters focused their attention on the huge sunspot facing Earth, a lesser sunspot near the sun's western limb exploded instead. Tricky sun.
BIG SUNSPOT FACES EARTH: In a year of few sunspots, AR2645 is remarkable. The young spot has quickly grown from an almost invisible speck into a sprawling behemoth more than 120,000 km wide, with multiple dark cores larger than Earth. And, it is directly facing our planet:
AR2645 has a 'beta-gamma' magnetic field that harbors energy for M-class (moderately strong) solar flares. Any such explosions while the sunspot faces Earth could ionize the top of our planet's atmosphere and alter the normal propagation of radio transmissions around the globe. Shortwave radio blackouts are possible if the sunspot erupts.
Despite its potential, AR2645 has so far been quiet, emitting only a crackling of minor C-flares with minimum effect on Earth. NOAA forecasters estimate a 10% chance of more potent M-flares in the next 24 hours.
Coronal Holes: 01 Apr 17
Solar wind flowing this minor coronal hole should reach Earth on April 2-3, adding its contribution to an already enhanced solar wind environment around Earth.
Прогноз солнечной активности на 27 дней
4 Апрель 2017 - 30 Апрель 2017
Северное сияние над Мурманском 31 марта 2017 г. (Aurora Murmansk Sony A7)
Taken by Дмитрий on March 31, 2017 @ Murmansk
Auroras Nr.114 Taken by B.Art Braafhart on March 31, 2017 @ Salla, Finnish Lapland
