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Almost Spotless

Nov. 30, 2016
NASA's Solar Dynamics Observatory spied the sun as it was hitting its lowest level of solar activity since 2011 (Nov. 14-18, 2016) while gradually marching toward solar minimum.

This week the sun was hitting its lowest level of solar activity since 2011 (Nov. 14-18, 2016) as it gradually marches toward solar minimum. This activity is usually measured by sunspot count and over the past several days the sun has been almost spotless. The sun has a pendulum-like pattern of solar cycle of activity that extends over about an 11-year period. The last peak of activity was in early 2014. At this point in time, the sunspot numbers seem to be sliding downwards faster than expected, though the solar minimum level should not occur until 2021. No doubt more and larger sunspots will inevitably appear, but we'll just have to wait and see.

Movies
PIA21207_Spotless_Nov_big.mp4
PIA21207_Spotless_Nov_sm.mp4

SDO is managed by NASA's Goddard Space Flight Center, Greenbelt, Maryland, for NASA's Science Mission Directorate, Washington. Its Atmosphere Imaging Assembly was built by the Lockheed Martin Solar Astrophysics Laboratory (LMSAL), Palo Alto, California.

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