Viewing archive of Saturday, 20 July 2013 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
57 -370B4.29C3.091

Sunspot regions

Region 11791

Number of
sunspots
Size Class Magn. Class Spot Location
1 -14 0 -90 AXX S13W46
HMIIF
HMIBC

Region 11793

Number of
sunspots
Size Class Magn. Class Spot Location
17 6 280 -30 EHO N21E12
HMIIF
HMIBC

Solar flares on this day

C3.02

Region 11796

Number of
sunspots
Size Class Magn. Class Spot Location
1 -3 10 AXX S13W67
HMIIF
HMIBC

Region 11797

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 10 -10 BXO S19W14
HMIIF
HMIBC

Region 11798

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX S12E28
HMIIF
HMIBC

Region 11799

Number of
sunspots
Size Class Magn. Class Spot Location
1 0 AXX S17E48
HMIIF
HMIBC

Region 11800

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HRX S10E51
HMIIF
HMIBC

All times in UTC

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Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/19Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (3%)
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Monthly mean Sunspot Number
March 202685.9 +7.7
April 202681 -4.9
Last 30 days92.5 +30.9

This day in history*

Solar flares
12022X2.25
22022M7.29
32001M5.99
41998M1.96
52022M1.9
DstG
12002-149G3
21985-124G3
31981-97G2
41973-76G2
51975-70G2
*since 1994

Aurora on this day in history

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