Viewing archive of Saturday, 20 September 2014
Select the desired archive item
Today two years ago: the strongest solar flare of this cycle?
Number 35... the X1.6 solar flare that occured on September 10 was the 35th X-class solar flare of this solar cycle. It was a powerful solar flare but as far as X-class solar flares go... it was with a peak flux of X1.6 actually only a relatively modest solar flare when you consider that solar flares can get 10 or even 20 times stronger than that. The true X-treme solar flares are the so called ''super X-class solar flares''... X-class solar flares that peak at X10 or even higher. We have yet to see such a solar flare this cycle... or have we?
Latest news
X2.2 solar flare, SDO outage
Major far side eruption, S1 radiation storm
Coronal hole faces Earth
Latest forum messages
Support SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |