Viewing archive of Wednesday, 18 May 2011 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
65 81B1.86C2.952

Sunspot regions

Region 11208

Number of
sunspots
Size Class Magn. Class Spot Location
2 -7 10 -40 BXO N09W78

Solar flares on this day

B3.24 B2.67

Region 11214

Number of
sunspots
Size Class Magn. Class Spot Location
12 60 CSO S24W24

Region 11216

Number of
sunspots
Size Class Magn. Class Spot Location
1 80 -10 HSX S15E54

Region 11217

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO S23W19

All times in UTC

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Last X-flare2026/02/04X4.21
Last M-flare2026/03/28M1.3
Last geomagnetic storm2026/03/25Kp5+ (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
February 202678.2 -34.3
March 202685.2 +7
Last 30 days85.2 +8.6

This day in history*

Solar flares
12001X2.45
22014X1.45
32023X1.2
42024M3.2
52001M3.13
DstG
11959-154G3
21979-129G3
31989-125G3
41957-121G4
51984-86G2
*since 1994

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