| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1997/10/16 | 2 | 60 | HSX | N18E77 | |
| 1997/10/17 | 2 | 60 | CSO | N16E69 | |
| 1997/10/18 | 3 | 80 | CSO | N17E57 | |
| 1997/10/19 | 3 | 60 | CSO | N17E43 | |
| 1997/10/20 | 1 | 30 | HSX | N17E26 | |
| 1997/10/21 | 1 | 40 | HSX | N16E13 | |
| 1997/10/22 | 4 | 40 | CRO | N16W01 | |
| 1997/10/23 | 3 | 10 | BXO | N16W14 |
| B | C |
|---|---|
| 1 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C4.43 | 1997/10/21 | 17:00 | 17:54 | 18:16 | |
| 2 | B1.5 | 1997/10/16 | 17:18 | 17:22 | 17:37 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/10 | M5.7 |
| 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 | 107.2 +27.9 |
| Ultimi 30 giorni | 95.2 -0.7 |