Viewing archive of Wednesday, 15 December 1999
Solar flares
Latest news
Sunday, 31 May 2020 - 14:53 UTC
Have we passed solar minimum?
Saturday, 30 May 2020 - 13:05 UTC
Yesterday's M-flare producing active region rotates into view
Friday, 29 May 2020 - 12:01 UTC
First M-class solar flare of a Solar Cycle 25 region!
Latest forum messages
- How to Calculate Sunspots Beforehand? 6
- Current knowledge of Solar-Terrestrial Coupling 19
- When did Solar Cycle 25 Start? 29
- Is the sun abnormally bright at the moment? 30
- Solar cycle and CMEs 10
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Space weather facts
| Last X-flare | 2017/09/10 | X8.2 |
| Last M-flare | 2020/05/29 | M1.1 |
| Last geomagnetic storm | 2020/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 288 days |
| 2020 | 157 days (70%) |
| Last spotless day | 2020/07/20 |