| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1998/04/18 | 8 | 20 | BXO | N21E00 | |
| 1998/04/19 | 7 | 50 | DSO | N21W12 | |
| 1998/04/20 | 12 | 70 | DSO | N21W25 | |
| 1998/04/21 | 14 | 100 | DSO | N21W40 | |
| 1998/04/22 | 14 | 70 | DSO | N21W53 | |
| 1998/04/23 | 9 | 130 | EAO | N21W66 | |
| 1998/04/24 | 6 | 90 | CSO | N22W79 |
| B |
|---|
| 5 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | B8.14 | 1998/04/19 | 13:00 | 13:05 | 13:11 | |
| 2 | B5.51 | 1998/04/21 | 23:21 | 23:24 | 23:26 | |
| 3 | B5.33 | 1998/04/19 | 16:33 | 16:36 | 16:39 | |
| 4 | B4.59 | 1998/04/19 | 14:12 | 14:20 | 14:27 | |
| 5 | B3.01 | 1998/04/22 | 13:48 | 13:51 | 13:54 |
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| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/04 | M1.89 |
| Ultima tempesta geomagnetica | 2026/05/05 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (2%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| aprile 2026 | 79.3 -6.6 |
| maggio 2026 | 132.7 +53.4 |
| Ultimi 30 giorni | 93 -7.3 |