Viewing archive of Sunday, 17 August 2014 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
121 221B4.71C2.595

Sunspot regions

Region 12135

Number of
sunspots
Size Class Magn. Class Spot Location
2 80 -10 HAX N15W73
HMIIF
HMIBC

Region 12139

Number of
sunspots
Size Class Magn. Class Spot Location
17 -10 130 -10 DAC N14W00
HMIIF
HMIBC

Solar flares on this day

C1.17

Region 12141

Number of
sunspots
Size Class Magn. Class Spot Location
8 -6 120 20 DAC N16E32
HMIIF
HMIBC

Region 12144

Number of
sunspots
Size Class Magn. Class Spot Location
8 -1 130 70 DAI S17W47
HMIIF
HMIBC

Solar flares on this day

C1.01 C1.1 C1.14

Region 12145

Number of
sunspots
Size Class Magn. Class Spot Location
3 -1 10 -10 BXO S27E01
HMIIF
HMIBC

Region 12146

Number of
sunspots
Size Class Magn. Class Spot Location
1 30 HSX N09E76
HMIIF
HMIBC

Solar flares on this day

C2.56

All times in UTC

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Last X-flare2026/03/30X1.4
Last M-flare2026/03/28M1.3
Last geomagnetic storm2026/03/25Kp5+ (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
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Monthly mean Sunspot Number
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This day in history*

Solar flares
12026X1.4
22022X1.38
32024M9.4
42024M9.3
52023M5.41
DstG
11990-187G4
21957-107G2
31979-104G1
41989-103G3
51988-88G2
*since 1994

Aurora on this day in history

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