The Sun Today :
Updated December 4, 2013
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Added 12/04/2013 @ 02:50 UTC
Returning Active Regions
A pair of active regions, including old sunspot 1893 are set to return into view off the southeast limb. An eruption registering as a C7.0 solar flare was detected at 00:57 UTC. Will an increase in solar activity be in store for us? Stay tuned to find out.
Updated 12/04/2013 @ 12:15 UTC
Good morning. Attached is an updated image of the visible solar disk on Wednesday. Solar activity during the past 24 hours was low. Two C-Class solar flares (C7.0 and C4.7) were detected. The first was centered off the southeast limb around returning region 1893 at 00:57 UTC. The second flare was centered near sunspot 1913 at 04:58 UTC. All other visible regions, including new sunspot 1915, remained stable. Returning active regions 1893 and 1900 are beginning to rotate back into view off the southeast limb and no visible sunspots are present as of this update. There will remain a chance for at least C-Class solar flares during the next 24 hours. No Earth directed coronal mass ejections (CMEs) were observed. Stay Tuned to SolarHam.com for the latest information.
Visible Solar Disk (Wednesday) - Click to Open
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Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
UPDATED 2013 Dec 5 0030 UTC
.24 hr Summary...
Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C6 flare observed at
04/0056 UTC from a region beyond the east limb. This same region was
responsible for an additional C6 flare at 04/2037 UTC. Region 1913
(S14W84, Dao/beta) exhibited slight growth and was responsible for a
C4/Sf flare that occurred at approximately 04/0458 UTC. An associated
coronal mass ejection was observed in LASCO/C2 imagery at 04/0536 UTC.
Analysis indicated that the ejecta had a westward trajectory and was not
determined to be Earth-directed. The other six numbered sunspot regions
displayed an overall trend of stability or slight decay. Region 1909
(S17W20, Ekc/beta-gamma) continued as the most magnetically complex
region but has yet to produce any significant flare activity. New Region
1916 (S14E19, Bxo/beta) was numbered. There were no Earth-directed
coronal mass ejections observed in satellite imagery during the period.
Solar activity is expected to be at low levels with a slight chance for
M-class flares (NOAA Scale R1-R2, Minor-Moderate) for the forecast
period (05-07 Dec).
[Full Report and Forecasts]
[Report of Solar-Geophysical Activity]
A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.
[Latest NOAA Sunspot Summary]
[Latest Solar Region Summary (SRS)]
[SolarHam Sunspot Summary]