Explanation: A new cycle has begun on our Sun. Over the past year, the Sun's magnetic field has reset and now a new 11 year period is beginning. Pictured above in a specific color of light emitted by hydrogen is sunspot 10982, one of the first sunspots of the new solar cycle. The two dark lines visible just above and to either side of the bright sunspot are cool filaments held aloft by the Sun's magnetic field. Hot and cold regions are shown as regions of relative light and dark, respectively. A solar cycle is caused by the changing magnetic field, and varies from solar maximum, when sunspot, coronal mass ejection, and flare phenomena are most frequent, to solar minimum, when such activity is relatively infrequent. Solar minimums occurred in 1996 and 2007, while the last solar maximum occurred in 2001. Of course, tomorrow's annular solar eclipse is mostly for penguins.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: sunspot - solar cycle - Solnechnye pyatna - solnechnyi cikl Publikacii so slovami: sunspot - solar cycle - Solnechnye pyatna - solnechnyi cikl
Sm. takzhe: AR 3664 na zahodyashem Solnce AR 3664: gigantskaya gruppa solnechnyh pyaten Solnechnyi minimum protiv solnechnogo maksimuma Pyatna na aktivnom Solnce Solnechnoe pyatno so svetlym mostom Holm solnechnyh pyaten AR2835: ostrova v fotosfere Vse publikacii na tu zhe temu >>