Visualizzazione archivio di sabato, 10 agosto AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Aug 10 1206 UTC

SIDC Forecast

Valid from 1230 UTC, 10 Aug 2013 until 12 Aug 2013
Brillamenti solari

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
10 Aug 2013104007
11 Aug 2013102014
12 Aug 2013100011

Bulletin

There are currently 4 numbered AR on the solar disk. A solitary C2.0 flare occured on August 9th around 20:10 UT from an unnumbered AR on the East limb. A small increased solar wind speed up to 480 km/s was detected by ACE, probably due to a very small coronal hole which was associated with a passing of the current sheet. Geomagnetic where quiet and are expected to remain so for the next 24 hours. In the night of August 11th-August 12th we expect active conditions due to the arrival of the CME of August 7th.

Today's estimated international sunspot number (ISN): 046, based on 11 stations.

Solar indices for 09 Aug 2013

Wolf number Catania067
10cm solar flux104
AK Chambon La Forêt///
AK Wingst008
Estimated Ap009
Estimated international sunspot number045 - Based on 17 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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Notizie sul meteo spaziale

Ultimo brillamento X2026/03/30X1.5
Ultimo brillamento M2026/04/09M1.0
Ultima tempesta geomagnetica2026/04/03Kp7- (G3)
Giorni senza macchie
Ultimi 365 giorni3 giorni
20263 giorni (3%)
Ultimo giorno senza macchie2026/02/24
Media mensile Numero di Macchie Solari
marzo 202685.9 +7.7
aprile 2026114.3 +28.4
Ultimi 30 giorni101.8 +46.6

Questo giorno nella storia*

Brillamenti solari
12001X3.14
22002X1.17
32023M2.83
42002M2.34
52000M1.23
DstG
11990-281G4
21982-137G3
31957-124G3
41959-122G4
51960-81G3
*dal 1994

Aurora on this day in history

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