| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1997/08/12 | 1 | 90 | HSX | N26E75 | |
| 1997/08/13 | 1 | 30 | HSX | N26E63 | |
| 1997/08/14 | 4 | 40 | CSO | N26E52 | |
| 1997/08/15 | 2 | 30 | HSX | N27E38 | |
| 1997/08/16 | 5 | 30 | CSO | N27E27 | |
| 1997/08/17 | 1 | 20 | HRX | N27E11 | |
| 1997/08/18 | 2 | 0 | AXX | N27W02 |
| B |
|---|
| 3 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | B4.7 | 1997/08/21 | 04:28 | 04:35 | 04:46 | |
| 2 | B4.64 | 1997/08/12 | 05:49 | 05:55 | 06:01 | |
| 3 | B2.04 | 1997/08/18 | 17:11 | 17:17 | 17:45 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/07 | M2.6 |
| Ultima tempesta geomagnetica | 2026/05/05 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (2%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| aprile 2026 | 79.3 -6.6 |
| maggio 2026 | 116.3 +37 |
| Ultimi 30 giorni | 91.3 -10 |