| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 2017/09/21 | 1 | 60 | HSX | S12E73 | |
| 2017/09/22 | 1 | 80 | HSX | S13E59 | |
| 2017/09/23 | 1 | 80 | HSX | S13E46 | |
| 2017/09/24 | 2 | 90 | CSO | S13E32 | |
| 2017/09/25 | 1 | 90 | HSX | S13E19 | |
| 2017/09/26 | 3 | 100 | CSO | S12E04 | |
| 2017/09/27 | 7 | 120 | CSO | S15W09 | |
| 2017/09/28 | 1 | 80 | HSX | S13W21 | |
| 2017/09/29 | 1 | 70 | HSX | S14W35 | |
| 2017/09/30 | 1 | 70 | HSX | S14W48 | |
| 2017/10/01 | 1 | 60 | HSX | S14W61 | |
| 2017/10/02 | 1 | 60 | HSX | S14W74 |
| B |
|---|
| 4 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | B8.18 | 2017/09/25 | 14:35 | 15:14 | 15:32 | |
| 2 | B7.78 | 2017/09/25 | 02:14 | 02:35 | 02:46 | |
| 3 | B3.81 | 2017/09/28 | 14:09 | 14:34 | 15:33 | |
| 4 | B3.47 | 2017/09/24 | 23:20 | 23:27 | 23:37 |
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| Ultimo brillamento X | 2025/12/08 | X1.1 |
| Ultimo brillamento M | 2025/12/31 | M7.11 |
| Ultima tempesta geomagnetica | 2026/01/02 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| dicembre 2025 | 124 +32.2 |
| gennaio 2026 | 110 -14 |
| Ultimi 30 giorni | 104.3 -5.3 |