Viewing archive of Wednesday, 17 December 2014
Select the desired archive item
M8.7 coronal mass ejection, sunspot region 2241 & 2242
Solar activity today is at high levels thanks to the M8.7 solar flare that occurred this morning at 04:51 UTC. For more information regarding this solar flare we advice you to read the article that we posted this morning. Coronagraph imagery from SOHO is now complete and shows that this solar flare indeed launched a coronal mass ejection.
M8.7 solar flare from sunspot region 2242
Solar activity increased to high levels thanks to sunspot region 2242, which continues to develop and gain in magnetic complexity. It produced a long duration M8.75 (R2-moderate) solar flare that peaked at 04:51 UTC which was surprisingly already the third M-class solar flare of today.
Latest news
Coronal hole faces Earth
X2.0 solar flare from sunspot region 4001
Coronal hole faces Earth, Minor G1 geomagnetic storm watch
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 | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/14 | M1.1 |
| Last geomagnetic storm | 2025/03/14 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 121.7 -32.9 |
| Last 30 days | 142.7 -6.5 |