Viewing archive of Tuesday, 12 August 2025 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
152 -51C1.82M1.83152

Sunspot regions

Region 14165

Number of
sunspots
Size Class Magn. Class Spot Location
1 120 HSX N11W0*
HMIIF
HMIBC

Region 14168

Number of
sunspots
Size Class Magn. Class Spot Location
3 70 DAO N05W0*
HMIIF
HMIBC

Region 14169

Number of
sunspots
Size Class Magn. Class Spot Location
3 1 40 -20 HAX N21W35
HMIIF
HMIBC

Region 14171

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 50 10 CSO N18W15
HMIIF
HMIBC

Region 14172

Number of
sunspots
Size Class Magn. Class Spot Location
27 7 170 30 EAC N08W32
HMIIF
HMIBC

Solar flares on this day

C5.0 C4.0 C8.3

Region 14174

Number of
sunspots
Size Class Magn. Class Spot Location
3 1 70 50 DAO S08W88
HMIIF
HMIBC

Region 14175

Number of
sunspots
Size Class Magn. Class Spot Location
6 4 50 30 CAO N11E06
HMIIF
HMIBC

Region 14177

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 20 HAX N05E09
HMIIF
HMIBC

Region 14178

Number of
sunspots
Size Class Magn. Class Spot Location
9 -3 200 -10 DAI N08W60
HMIIF
HMIBC

Solar flares on this day

C2.1

Region 14179

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

Region 14180

Number of
sunspots
Size Class Magn. Class Spot Location
8 50 DAO S04E61
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 2026101.7 +15.8
Last 30 days97.5 +41.1

This day in history*

Solar flares
12001X2.9
22002M5.79
32013M4.79
42025M2.7
52025M2.3
DstG
12001-236G3
21990-174G4
31981-163G3
42014-87G1
51978-80G3
*since 1994

Aurora on this day in history

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