| Numero di macchie solari |
Dimensione | Classe Magn. | Classe Macchia | Posizione | |
|---|---|---|---|---|---|
| 1999/12/17 | 12 | 40 | CRO | S14E24 | |
| 1999/12/18 | 12 | 70 | DAO | S13E10 | |
| 1999/12/19 | 19 | 100 | DAO | S13W02 | |
| 1999/12/20 | 13 | 70 | DAO | S13W16 | |
| 1999/12/21 | 8 | 30 | DSO | S13W31 | |
| 1999/12/22 | 7 | 20 | BXO | S13W43 | |
| 1999/12/23 | 6 | 50 | DAO | S14W57 | |
| 1999/12/24 | 4 | 30 | DSO | S14W69 | |
| 1999/12/25 | 3 | 0 | BXO | S13W80 |
| C |
|---|
| 5 |
| Inizio | Massimo | Fine | ||||
|---|---|---|---|---|---|---|
| 1 | C6.26 | 1999/12/22 | 00:01 | 00:10 | 00:17 | |
| 2 | C4.91 | 1999/12/21 | 23:30 | 23:38 | 23:46 | |
| 3 | C4.47 | 1999/12/22 | 13:44 | 13:54 | 14:02 | |
| 4 | C2.37 | 1999/12/17 | 17:39 | 17:50 | 18:37 | |
| 5 | C2.29 | 1999/12/23 | 17:24 | 17:29 | 17:33 |
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
| Ultimo brillamento X | 2026/04/24 | X2.5 |
| Ultimo brillamento M | 2026/05/10 | M5.7 |
| 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 | 96.6 +17.3 |
| Ultimi 30 giorni | 96.1 +3.6 |