| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/08/14 | 1 | 180 | HAX | N21E75 | |
| 1999/08/15 | 5 | 350 | CKO | N22E67 | |
| 1999/08/16 | 8 | 380 | CKO | N22E54 | |
| 1999/08/17 | 8 | 410 | CKO | N23E40 | |
| 1999/08/18 | 8 | 380 | CKO | N21E28 | |
| 1999/08/19 | 8 | 420 | CKO | N22E15 | |
| 1999/08/20 | 14 | 350 | DKO | N22E01 | |
| 1999/08/21 | 12 | 290 | CKO | N22W11 | |
| 1999/08/22 | 11 | 230 | CHO | N22W25 | |
| 1999/08/23 | 17 | 240 | DHO | N23W36 | |
| 1999/08/24 | 13 | 230 | ESO | N22W50 | |
| 1999/08/25 | 7 | 170 | CAO | N22W63 | |
| 1999/08/26 | 8 | 120 | DAO | N23W75 | |
| 1999/08/27 | 1 | 60 | HSX | N20W91 |
| C | M |
|---|---|
| 7 | 1 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | M1.03 | 1999/08/14 | 11:58 | 12:10 | 12:15 | |
| 2 | C8.47 | 1999/08/17 | 14:28 | 16:02 | 17:54 | |
| 3 | C3.77 | 1999/08/17 | 12:32 | 13:23 | 13:57 | |
| 4 | C1.97 | 1999/08/16 | 00:18 | 00:34 | 00:48 | |
| 5 | C1.8 | 1999/08/16 | 20:23 | 20:29 | 20:35 | |
| 6 | C1.36 | 1999/08/17 | 03:18 | 03:34 | 03:47 | |
| 7 | C1.17 | 1999/08/16 | 16:37 | 16:42 | 16:53 | |
| 8 | C1.04 | 1999/08/15 | 12:53 | 13:00 | 13:11 |
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| Ultimo brillamento X | 2026/02/04 | X4.21 |
| Ultimo brillamento M | 2026/02/25 | M2.4 |
| Ultima tempesta geomagnetica | 2026/03/03 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (4%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| febbraio 2026 | 78.2 -34.3 |
| marzo 2026 | 75.1 -3.1 |
| Ultimi 30 giorni | 54.5 -72.1 |