| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 2012/09/20 | 4 | 50 | DSO | S22E62 | |
| 2012/09/21 | 3 | 70 | DSO | S21E52 | |
| 2012/09/22 | 2 | 50 | DSO | S21E43 | |
| 2012/09/23 | 2 | 50 | DAO | S21E30 | |
| 2012/09/24 | 2 | 50 | DSO | S22E17 | |
| 2012/09/25 | 2 | 40 | DSO | S21E04 | |
| 2012/09/26 | 3 | 30 | CRO | S21W09 | |
| 2012/09/27 | 2 | 10 | BXO | S20W21 | |
| 2012/09/28 | 1 | 5 | AXX | S20W35 | |
| 2012/09/29 | 1 | 0 | AXX | S21W47 |
| C |
|---|
| 3 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C3.75 | 2012/09/19 | 15:04 | 15:12 | 15:21 | |
| 2 | C1.84 | 2012/09/19 | 16:37 | 16:42 | 16:52 | |
| 3 | C1.25 | 2012/09/28 | 21:15 | 21:18 | 21:20 |
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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 | 101.8 -7.7 |