Viewing archive of Tuesday, 10 December 2013 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot number New regionsBackground fluxMaximum fluxC
169 442 -1C1.23C3.323

Sunspot regions

Region 11909

Number of
sunspots
Size Class Magn. Class Spot Location
1 40 -10 HSX S19W93
HMIIF
HMIBC

Region 11912

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 110 -10 HSX S21W24
HMIIF
HMIBC

Region 11916

Number of
sunspots
Size Class Magn. Class Spot Location
20 210 -30 EAC S13W51
HMIIF
HMIBC

Solar flares on this day

C3.28

Region 11917

Number of
sunspots
Size Class Magn. Class Spot Location
10 2 240 30 CAI S16E45
HMIIF
HMIBC

Region 11918

Number of
sunspots
Size Class Magn. Class Spot Location
4 1 110 50 DAO S08E63
HMIIF
HMIBC

Region 11919

Number of
sunspots
Size Class Magn. Class Spot Location
5 20 CRO S06W25
HMIIF
HMIBC

Region 11920

Number of
sunspots
Size Class Magn. Class Spot Location
1 70 HSX N12E71
HMIIF
HMIBC

Solar flares on this day

C2.73

Region 11921

Number of
sunspots
Size Class Magn. Class Spot Location
2 120 HSX N06E75
HMIIF
HMIBC

All times in UTC

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026114.3 +28.4
Last 30 days102.4 +48.5

This day in history*

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

Aurora on this day in history

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