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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Aug 26 1218 UTC
SIDC Forecast
Brillamenti solari
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Protoni solari
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 26 Aug 2013 | 113 | 007 |
| 27 Aug 2013 | 113 | 007 |
| 28 Aug 2013 | 114 | 007 |
Bulletin
There are currently 4 numbered AR on the solar disk, C-class (or higher) flaring is unlikely. Solar wind speed is around 350 km/s and the interplanetary magnetic field Bz component is around -3 nT. Geomagnetic conditions are quiet and are expected to remain so for the next 48 hours.
Today's estimated international sunspot number (ISN): 029, based on 12 stations.Solar indices for 25 Aug 2013
| Wolf number Catania | /// |
| 10cm solar flux | 113 |
| AK Chambon La Forêt | 011 |
| AK Wingst | 008 |
| Estimated Ap | 008 |
| Estimated international sunspot number | 033 - Based on 12 stations |
Noticeable events summary
| Day | Begin | Max | Fine | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| Nessuna | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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Ultime notizie
M8.1 solar flare with earth-directed CME
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Notizie sul meteo spaziale
| Ultimo brillamento X | 2025/12/08 | X1.1 |
| Ultimo brillamento M | 2025/12/27 | M5.1 |
| Ultima tempesta geomagnetica | 2025/12/22 | 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 | 114.9 +23.1 |
| Ultimi 30 giorni | 112.3 +26.4 |