Visualizzazione archivio di mercoledì, 26 novembre AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Nov 26 1227 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Nov 2014 until 28 Nov 2014
Brillamenti solari

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
26 Nov 2014164004
27 Nov 2014156008
28 Nov 2014146009

Bulletin

Four C-class flare were observed, with NOAA 2217 producing the strongest event of the period (C2.9 peaking at 06:17UT). Slowly developing region NOAA 2219 and a new, currently unnumbered, region near the east limb merit some attention, as they were the sources of the other C-class flares. Numerous, but quiet, filaments are present on the solar disk, with the longest measuring 40 degrees and located in the NE quadrant. No Earth- directed CMEs were observed. Further C-class flaring is expected, with a small chance on an isolated M-class flare. Solar wind speed declined from about 400 to 320 km/s. Bz was mostly negative and varied between -6 and +4 nT. The IMF is directed away from the Sun. The geomagnetic field was quiet to unsettled (K<4), and is expected to remain so. Effects from an expected Sector Boundary Crossing and the possible high speed stream from the extension of a coronal hole may result in an isolated active period on 27-28 November.

Today's estimated international sunspot number (ISN): 085, based on 02 stations.

Solar indices for 25 Nov 2014

Wolf number Catania///
10cm solar flux169
AK Chambon La Forêt010
AK Wingst006
Estimated Ap005
Estimated international sunspot number084 - Based on 13 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

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

Tutti gli orari in UTC

<< Vai alla pagina della panoramica giornaliera

Ultime notizie

Supporta SpaceWeatherLive.com!

Molte persone vengono su SpaceWeatherLive per seguire l'attività del Sole o sapere se ci sia la possibilità di vedere l'aurora, ma a maggior traffico corrispondono costi maggiori. Considerate una donazione se vi piace SpaceWeatherLive così che possiamo mantenere online il sito web!

Dona SpaceWeatherLive Pro
Supporta SpaceWeatherLive con il nostro merchandise
Dai un'occhiata al nostro merchandise

Notizie sul meteo spaziale

Ultimo brillamento X2025/03/28X1.1
Ultimo brillamento M2025/04/01M2.5
Ultima tempesta geomagnetica2025/03/27Kp5 (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
febbraio 2025154.6 +17.6
aprile 2025152.5 -2.1
Ultimi 30 giorni130.7 -17.9

Questo giorno nella storia*

Brillamenti solari
12001X1.77
22017M8.35
31999M6.2
42001M3.57
52017M1.81
DstG
11979-168G4
21960-151G3
31992-105G2
42004-104G2
51994-103G3
*dal 1994

Social networks