| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/12/11 | 5 | 10 | BXO | S18E27 | |
| 1998/12/12 | 10 | 20 | BXO | S18E15 | |
| 1998/12/13 | 19 | 90 | DSO | S18E01 | |
| 1998/12/14 | 19 | 190 | DAO | S18W13 | |
| 1998/12/15 | 18 | 250 | DAO | S19W28 | |
| 1998/12/16 | 11 | 270 | DAO | S18W40 | |
| 1998/12/17 | 12 | 220 | DAO | S17W53 | |
| 1998/12/18 | 6 | 180 | DSO | S17W65 | |
| 1998/12/19 | 3 | 120 | DAO | S17W79 | |
| 1998/12/20 | 2 | 40 | HRX | S18W91 |
| C | M |
|---|---|
| 9 | 2 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | M1.06 | 1998/12/14 | 09:38 | 09:44 | 09:48 | |
| 2 | M1 | 1998/12/14 | 00:01 | 00:10 | 00:12 | |
| 3 | C6.54 | 1998/12/17 | 18:09 | 18:15 | 18:37 | |
| 4 | C5.39 | 1998/12/13 | 10:30 | 10:35 | 10:41 | |
| 5 | C4.86 | 1998/12/11 | 17:39 | 17:49 | 17:58 | |
| 6 | C4.04 | 1998/12/13 | 20:37 | 20:43 | 20:52 | |
| 7 | C2.03 | 1998/12/10 | 07:43 | 08:08 | 08:19 | |
| 8 | C2 | 1998/12/13 | 04:30 | 04:36 | 04:45 | |
| 9 | C1.87 | 1998/12/11 | 11:41 | 11:49 | 11:56 | |
| 10 | C1.32 | 1998/12/17 | 02:10 | 02:15 | 02:20 |
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| Ultimo brillamento X | 2025/12/08 | X1.1 |
| Ultimo brillamento M | 2025/12/12 | M1.1 |
| Ultima tempesta geomagnetica | 2025/12/12 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| novembre 2025 | 91.8 -22.8 |
| dicembre 2025 | 128 +36.2 |
| Ultimi 30 giorni | 108.4 +15.8 |