Viewing archive of Saturday, 11 May 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
145 -41C1.11M1.1561

Sunspot regions

Region 11734

Number of
sunspots
Size Class Magn. Class Spot Location
2 310 HKX S19W88
HMIIF
HMIBC

Solar flares on this day

C2.22

Region 11736

Number of
sunspots
Size Class Magn. Class Spot Location
10 240 DAI S08W99
HMIIF
HMIBC

Region 11738

Number of
sunspots
Size Class Magn. Class Spot Location
4 -3 40 10 CAO N17W43
HMIIF
HMIBC

Region 11739

Number of
sunspots
Size Class Magn. Class Spot Location
2 -3 10 -10 BXO N11W39
HMIIF
HMIBC

Solar flares on this day

C4.07

Region 11740

Number of
sunspots
Size Class Magn. Class Spot Location
1 -3 10 AXX S21W26
HMIIF
HMIBC

Region 11741

Number of
sunspots
Size Class Magn. Class Spot Location
11 9 50 40 CAO S21W05
HMIIF
HMIBC

Region 11742

Number of
sunspots
Size Class Magn. Class Spot Location
4 -2 50 -50 DAO N30E22
HMIIF
HMIBC

Region 11743

Number of
sunspots
Size Class Magn. Class Spot Location
4 -1 10 -10 BXO N24E29
HMIIF
HMIBC

Region 11744

Number of
sunspots
Size Class Magn. Class Spot Location
10 3 60 30 DAO N05E42
HMIIF
HMIBC

Solar flares on this day

C1.83

Region 11745

Number of
sunspots
Size Class Magn. Class Spot Location
5 4 300 180 DKI N11E62
HMIIF
HMIBC

Solar flares on this day

C3.16

Region 11746

Number of
sunspots
Size Class Magn. Class Spot Location
2 210 DSO S27E63

Solar flares on this day

C2.02 C1.41 M1.15

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 storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202679.3 -6.7
Last 30 days92.4 +29.5

This day in history*

Solar flares
12002X2.2
22022M9.7
32015M5.78
42003M4.14
52024M3.43
DstG
11985-158G4
21970-141G4
31997-107G1
41981-94G1
51971-77G2
*since 1994

Aurora on this day in history

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