Articles tagged "total solar irradiance"

sdo aia 171 december 20 2017

Solar activity cycle falls to the bottom 1.5 years earlier than expected

According to the Laboratory for X-ray Solar Astronomy of the PN Lebedev Physical Institute in Russia, the solar activity cycle has, by all indications, practically reached its minimum 1.5 years ahead of expected time. Given that the previous solar maximum in 2012...

December 20, 2017

solar filament eruption december 15 2017

Filament eruption, spotless Sun, Total Solar Irradiance and cosmic radiation

A 13-degree long plasma filament eruption was observed in SDO/AIA 304 imagery starting at 12:29 UTC on December 15, 2017. A glancing blow is expected late December 19, in combination with a recurrent, positive polarity CH HSS. Meanwhile, solar activity is at very...

December 17, 2017