Viewing archive of Friday, 17 December 2021 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
119 -80 -2B5.34M1.2991

Sunspot regions

Region 12906

Number of
sunspots
Size Class Magn. Class Spot Location
7 -2 50 -10 CSO S29W15
HMIIF
HMIBC

Region 12907

Number of
sunspots
Size Class Magn. Class Spot Location
19 -4 280 100 DHI S18E13
HMIIF
HMIBC

Solar flares on this day

B9.8 C1.1

Region 12908

Number of
sunspots
Size Class Magn. Class Spot Location
18 8 270 60 DKI S18E29
HMIIF
HMIBC

Solar flares on this day

B8.1

Region 12909

Number of
sunspots
Size Class Magn. Class Spot Location
6 1 210 60 DSO S20E42
HMIIF
HMIBC

Solar flares on this day

C2.3

Region 12910

Number of
sunspots
Size Class Magn. Class Spot Location
5 -1 30 10 CRO N14W29
HMIIF
HMIBC

Region 12911

Number of
sunspots
Size Class Magn. Class Spot Location
4 1 80 60 CAO N21E54
HMIIF
HMIBC

Solar flares on this day

M1.29 C1.5 C1.1 C1.2 C1.3 C1.4 C1.3 C1.5

All times in UTC

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Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
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October 2024166.4 +25
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Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
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51979-90G1
*since 1994

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