| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 2012/12/13 | 7 | 30 | DAO | N20W08 | |
| 2012/12/14 | 10 | 70 | DAI | N21W20 | |
| 2012/12/15 | 13 | 100 | DAI | N21W33 | |
| 2012/12/16 | 19 | 120 | DAI | N21W46 | |
| 2012/12/17 | 15 | 140 | DSI | N20W60 | |
| 2012/12/18 | 10 | 140 | DSI | N23W75 | |
| 2012/12/19 | 5 | 80 | DSO | N23W89 |
| B | C |
|---|---|
| 4 | 7 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C1.99 | 2012/12/18 | 13:00 | 13:08 | 13:12 | |
| 2 | C1.96 | 2012/12/17 | 14:41 | 15:02 | 15:17 | |
| 3 | C1.82 | 2012/12/15 | 19:42 | 19:47 | 19:54 | |
| 4 | C1.62 | 2012/12/16 | 20:28 | 21:03 | 21:32 | |
| 5 | C1.29 | 2012/12/17 | 22:19 | 22:23 | 22:27 | |
| 6 | C1.12 | 2012/12/15 | 09:06 | 09:11 | 09:15 | |
| 7 | C1.06 | 2012/12/17 | 12:16 | 12:20 | 12:23 | |
| 8 | B9.53 | 2012/12/17 | 08:07 | 08:12 | 08:15 | |
| 9 | B8.84 | 2012/12/15 | 12:14 | 12:24 | 12:29 | |
| 10 | B8.19 | 2012/12/15 | 11:44 | 11:51 | 11:55 |
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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 | 122 -2 |
| Ultimi 30 giorni | 111.1 +8.3 |