Viewing archive of Sunday, 31 July 2011 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
128 270 -1B5.14C5.4410

Sunspot regions

Region 11260

Number of
sunspots
Size Class Magn. Class Spot Location
12 -8 330 20 EHI N19W09

Region 11261

Number of
sunspots
Size Class Magn. Class Spot Location
23 2 350 50 DKC N17E22

Solar flares on this day

C5.44 C2.68

Region 11263

Number of
sunspots
Size Class Magn. Class Spot Location
12 7 470 160 DHI N18E48

Solar flares on this day

C1.06 C1.65 C2.06 C2.77 C1.52

Region 11264

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 AXX S29E20

Region 11265

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N18W41

Solar flares on this day

C2.44

All times in UTC

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Last X-flare2026/03/30X1.4
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Last geomagnetic storm2026/03/25Kp5+ (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
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February 202678.2 -34.3
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This day in history*

Solar flares
12022M9.67
22000M5.89
32001M3.06
42000M2.9
52000M2.71
DstG
12001-387G4
21960-191G4
31989-100G2
41990-88
52003-78G2
*since 1994

Aurora on this day in history

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