| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/12/18 | 5 | 10 | BXO | N19E72 | |
| 1998/12/19 | 11 | 190 | EAI | N19E61 | |
| 1998/12/20 | 18 | 270 | EAI | N20E49 | |
| 1998/12/21 | 16 | 170 | EAI | N20E36 | |
| 1998/12/22 | 17 | 130 | EAO | N20E23 | |
| 1998/12/23 | 16 | 70 | CAO | N20E11 | |
| 1998/12/24 | 11 | 40 | CRO | N22W02 | |
| 1998/12/25 | 5 | 10 | BXO | N23W12 | |
| 1998/12/27 | 1 | 0 | AXX | N20W40 | |
| 1998/12/28 | 1 | 0 | AXX | N16W49 |
| B | C | M | X |
|---|---|---|---|
| 1 | 12 | 2 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | X1.15 | 1998/12/18 | 17:13 | 17:22 | 17:27 | |
| 2 | M2.63 | 1998/12/20 | 08:49 | 09:00 | 09:03 | |
| 3 | M1.19 | 1998/12/17 | 22:58 | 23:06 | 23:10 | |
| 4 | C7.97 | 1998/12/19 | 23:11 | 23:24 | 23:29 | |
| 5 | C6.39 | 1998/12/19 | 14:26 | 14:36 | 14:41 | |
| 6 | C5 | 1998/12/20 | 05:07 | 05:14 | 05:21 | |
| 7 | C4.97 | 1998/12/18 | 07:42 | 07:50 | 07:58 | |
| 8 | C4.94 | 1998/12/18 | 05:14 | 05:27 | 05:30 | |
| 9 | C4.57 | 1998/12/18 | 03:02 | 03:07 | 03:11 | |
| 10 | C3.6 | 1998/12/18 | 03:43 | 03:48 | 03:51 |
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| Ultimo brillamento X | 2026/02/04 | X4.3 |
| Ultimo brillamento M | 2026/02/16 | M2.4 |
| Ultima tempesta geomagnetica | 2026/02/15 | Kp5+ (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| gennaio 2026 | 112.6 -11.4 |
| febbraio 2026 | 109 -3.6 |
| Ultimi 30 giorni | 126.1 +25.9 |