After days of suspenseful quiet, huge sunspot AR2665 finally erupted on July 14th (0209 UT), producing a powerful M2-class solar flare. 44 more words
Tags » Solar Activity
- Sunspots are heading toward a low point expected in 2019-2020, NASA says
- Solar minimum means certain types of activity, such as sunspots and flares, drop… 93 more words
Spewing a stream of solar wind as fast as 700 km/s (1.6 million mph), a hole in the sun’s atmosphere is turning toward Earth.
Forecasters expect the stream to reach our planet on June 15th or 16th with a 40% chance of minor G1-class geomagnetic storms when it arrives. 36 more words
Solar cycle 24 has seen very low solar activity thus far, likely the lowest in 100 years.
Figure 1: F10.7 Flux 2014 – 2017
The F10.7 flux shows that over the last three and a half years the Sun has gone from solar maximum through a bounded decline to the current stage of the trail to minimum. 12 more words