Affichage des archives de mardi, 7 mai 2013
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2013 May 07 1246 UTC
Prévisions SIDC
Éruptions solaires
Eruptive (C-class flares expected, probability >=50%)
Géomagnétisme
Quiet (A<20 and K<4)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 07 May 2013 | 127 | 012 |
| 08 May 2013 | 125 | 010 |
| 09 May 2013 | 125 | 007 |
Bulletin
Solar activity has been eruptive during the past 24 hours, featuring three C flares from NOAA AR 11731, 11734 and new region 11736. More C-level flares are expected within the next 48 hours, with a slight chance for an M flare. In the last 24 hours, the IMF has decreased from 14 to 6 nT, probably due to the influence of a coronal hole high speed stream. Solar wind speeds have ranged between about 460 and 540 km/s, and currently lie around 520 km/s. Bz has been mainly positive, hence geomagnetic activity has been at quiet levels (K Dourbes between 2 and 3; NOAA Kp between 2 and 3) during the past 24 hours. Quiet geomagnetic conditions (K Dourbes < 4) are expected for May 7 to 9.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 078, sur la base de 16 stations.Indices solaires pour 06 May 2013
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 131 |
| AK Chambon La Forêt | 015 |
| AK Wingst | 012 |
| Ap estimé | 010 |
| Nombre international de taches solaires estimé | 078 - Basé sur 23 stations |
Résumé des événements marquants
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Types de sursaut radio | Catania/NOAA | |
|---|---|---|---|---|---|---|---|---|---|---|
| Aucun | ||||||||||
Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive
Toutes les heures sont indiquées en UTC
Dernières nouvelles
CME impact! S4 solar radiation storm
X1.9 solar flare with earth-directed CME
Happy New Year! Celebrate with an M7.1 solar flare!
Aidez SpaceWeatherLive.com !
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!
La Météo Spatiale en faits
| 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 | 119.1 -4.9 |
| 30 derniers jours | 122 +10.9 |