Viewing archive of Saturday, 12 September 1998
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 118 -16 | 1 | B5.7 | C3.17 | 4 |
Solar flares
| Region | Start | Maximum | End | |
|---|---|---|---|---|
| 8333 | C1.2 | 01:36 | 01:39 | 01:45 |
| - | C3.1 | 07:47 | 07:53 | 07:55 |
| 8331 | C1.1 | 12:49 | 12:57 | 13:07 |
| 8331 | B8.5 | 14:16 | 14:25 | 14:31 |
| - | C1.9 | 20:26 | 20:35 | 20:43 |
Latest news
Tuesday, 10 December 2019 - 18:50 UTC
Official Solar Cycle 25 Forecast Update
Monday, 9 December 2019 - 21:40 UTC
Welcome GOES-16!
Monday, 18 November 2019 - 20:12 UTC
Coronal hole faces Earth
Latest forum messages
- Stretch of Spotless Days 3
- Strange "Wave" Phenomenon on the Sun 11
- Ap & aa Indices and Solar Minimum 56
- New Goes-16 readings 9
- Spotless Days 2
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Space weather facts
| Last X-flare: | 2017/09/10 | X8.2 |
| Last M-flare: | 2017/10/20 | M1.0 |
| Last geomagnetic storm: | 2019/10/26 | Kp5 (G1) |
| Number of spotless days in 2019: | 267 | |
| Current stretch spotless days: | 41 | |