| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 2017/09/04 | 2 | 10 | AXX | N19E64 | |
| 2017/09/05 | 2 | 10 | AXX | N19E51 | |
| 2017/09/06 | 1 | 20 | AXX | N18E39 | |
| 2017/09/07 | 1 | 10 | AXX | N18E25 | |
| 2017/09/08 | 3 | 10 | BXO | N17E12 | |
| 2017/09/09 | 3 | 10 | AXX | N17W02 |
| B | C |
|---|---|
| 1 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C3.87 | 2017/09/07 | 22:57 | 23:00 | 23:02 | |
| 2 | B4.53 | 2017/09/12 | 13:57 | 14:01 | 14:08 |
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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 | 106.7 -17.3 |
| Ultimi 30 giorni | 102.5 -7.3 |