Viewing archive of Thursday, 21 September 2023 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
1592 1C1.22M8.7261

Sunspot regions

Region 13425

Number of
sunspots
Size Class Magn. Class Spot Location
1 60 HSX N24W0*
HMIIF
HMIBC

Region 13433

Number of
sunspots
Size Class Magn. Class Spot Location
1 70 -20 HSX N28W54
HMIIF
HMIBC

Region 13435

Number of
sunspots
Size Class Magn. Class Spot Location
4 290 -10 DKI N09E17
HMIIF
HMIBC

Solar flares on this day

C2.5 M8.72

Region 13436

Number of
sunspots
Size Class Magn. Class Spot Location
3 -3 100 -120 DAO N21W88
HMIIF
HMIBC

Region 13437

Number of
sunspots
Size Class Magn. Class Spot Location
7 -4 140 -50 DSO S18W57
HMIIF
HMIBC

Region 13438

Number of
sunspots
Size Class Magn. Class Spot Location
9 -2 80 10 DAI N11E09
HMIIF
HMIBC

Solar flares on this day

C1.6 C2.4

Region 13439

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 40 10 HSX S25E18
HMIIF
HMIBC

Region 13440

Number of
sunspots
Size Class Magn. Class Spot Location
1 60 HSX N17E33
HMIIF
HMIBC

Region 13441

Number of
sunspots
Size Class Magn. Class Spot Location
6 2 50 30 DRI N08W17
HMIIF
HMIBC

Region 13442

Number of
sunspots
Size Class Magn. Class Spot Location
7 2 30 -20 CSI S11E39
HMIIF
HMIBC

Solar flares on this day

C2.2

Region 13443

Number of
sunspots
Size Class Magn. Class Spot Location
7 40 DAO N27W26
HMIIF
HMIBC

Solar flares on this day

C2.1 C2.1 C3.2

Region 13444

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO N24E37
HMIIF
HMIBC

All times in UTC

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Last X-flare2024/10/31X2.0
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Spotless days
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September 2024141.4 -74.1
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Last 30 days161.1 +7.2

This day in history*

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*since 1994

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