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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2018 Nov 26 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Nov 2018 until 28 Nov 2018
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
26 Nov 2018069004
27 Nov 2018068006
28 Nov 2018067005

Bulletin

Solar activity remains to be very low with no C-class and even B-class flares reported during last 24 hours. The only sunspot group observed on the visible side of the solar disc, NOAA AR 2728, has strongly decayed and it will probably not be the source of flaring activity in the coming hours. The coronagraph images do not show any signatures of the possibly Earth- directed CME. The solar proton flux remained to be at the background level.

The Earth is presently inside the slow solar wind with the speed of about 320 km, and the interplanetary magnetic field magnitude is about 5 nT. The geomagnetic conditions are quiet and we expect them to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 05 stations.

Solar indices for 25 Nov 2018

Wolf number Catania///
10cm solar flux070
AK Chambon La Forêt006
AK Wingst002
Estimated Ap002
Estimated international sunspot number014 - Based on 10 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 X2026/02/04X4.21
Ultimo brillamento M2026/03/18M2.7
Ultima tempesta geomagnetica2026/03/23Kp5 (G1)
Giorni senza macchie
Ultimi 365 giorni3 giorni
20263 giorni (4%)
Ultimo giorno senza macchie2026/02/24
Media mensile Numero di Macchie Solari
febbraio 202678.2 -34.3
marzo 202677.7 -0.5
Ultimi 30 giorni74.2 -10.5

Questo giorno nella storia*

Brillamenti solari
12024M4.4
22001M3.71
32001M3.57
42004M3.43
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DstG
11991-298G4
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41969-97G1
52024-88G1
*dal 1994

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