Publié: 2013 Oct 18 1243 UTC
Active (M-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Warning condition (activity levels expected to increase, but no numeric forecast given)
| Flux de 10 cm | Ap | |
|---|---|---|
| 18 Oct 2013 | 136 | 007 |
| 19 Oct 2013 | 134 | 007 |
| 20 Oct 2013 | 132 | 007 |
Solar activity has been moderate, many C-class flares coming mostly from NOAA AR 1875 that rotated into view over the eastern limb and has magnetic beta configuration. NOAA AR 1865 has simplified to a beta configuration but it is still producing C-class flares. AR 1861 is about to rotate over the western limb, but remains very active, it produced an M1.2 flare peaking at 15:41 UT on October 17. A faint narrow CME was associated with this flare, not expected to arrive to the Earth. Geomagnetic conditions have been quiet and are expected to remain so.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 116, sur la base de 08 stations.
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 136 |
| AK Chambon La Forêt | 014 |
| AK Wingst | 011 |
| Ap estimé | 012 |
| Nombre international de taches solaires estimé | 105 - Basé sur 21 stations |
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Catania/NOAA | Types de sursaut radio |
|---|---|---|---|---|---|---|---|---|---|
| 17 | 1509 | 1541 | 1558 | ---- | M1.2 | 02/1861 | III/2 |
Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive
Toutes les heures sont indiquées en UTC
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!
| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 21/01/2026 | M3.4 |
| Dernier orage géomagnétique | 22/01/2026 | Kp5+ (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| décembre 2025 | 124 +32.2 |
| janvier 2026 | 117.9 -6.1 |
| 30 derniers jours | 121.4 +11.9 |