Publié: 2013 Jul 28 1309 UTC
Eruptive (C-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 28 Jul 2013 | 106 | 010 |
| 29 Jul 2013 | 104 | 004 |
| 30 Jul 2013 | 105 | 004 |
Several weak C-class flares were detected during the last 24 hours in Catania sunspot groups 33 (NOAA AR 1793, currently behind the north-west limb) and 35 (NOAA AR 1800). We expect flaring activity to continue at the C-level (with an M-class flare unlikely), especially in the Catania sunspot group 35 (NOAA AR 1800) that keeps the beta-gamma configuration of its photospheric magnetic field. The Earth is currently inside a slow (around 440 km/s) solar wind flow with slightly elevated (around 6 nT) interplanetary magnetic field magnitude. We expect quiet to unsettled geomagnetic conditions.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 048, sur la base de 09 stations.
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 108 |
| AK Chambon La Forêt | 020 |
| AK Wingst | 014 |
| Ap estimé | 014 |
| Nombre international de taches solaires estimé | 047 - Basé sur 17 stations |
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Catania/NOAA | Types de sursaut radio | |
|---|---|---|---|---|---|---|---|---|---|---|
| Aucun | ||||||||||
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 | 119.6 -4.4 |
| 30 derniers jours | 122.3 +11.2 |