Viewing archive of Sunday, 11 September 2011 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
94 171B6.86C9.485

Sunspot regions

Region 11283

Number of
sunspots
Size Class Magn. Class Spot Location
7 -5 200 -10 DSO N13W73

Solar flares on this day

C9.51 C2.82 C2.48 C1.37 C1.64

Region 11287

Number of
sunspots
Size Class Magn. Class Spot Location
2 70 10 HSX S29W28

Region 11289

Number of
sunspots
Size Class Magn. Class Spot Location
11 5 450 70 DHO N23E24

Region 11290

Number of
sunspots
Size Class Magn. Class Spot Location
5 50 20 DRO S15E16

Region 11291

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 DRO N23W03

All times in UTC

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Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.7
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 2026133.3 +47.4
Last 30 days96.1 +32

This day in history*

Solar flares
12002M8.82
22026M7.6
31999M6.76
42001M2.91
52003M2.74
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*since 1994

Aurora on this day in history

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