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Viewing archive of Friday, 17 January 2025 - Sunspot regions

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Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
149 442C2.41M7.46189

Sunspot regions

Region 13956

Number of
sunspots		 Size Class Magn. Class Spot Location
2 1 90 10 HAX N04W72
HMIIF
HMIBC

Region 13959

Number of
sunspots		 Size Class Magn. Class Spot Location
14 4 550 120 EKO N18E12
HMIIF
HMIBC

Region 13961

Number of
sunspots		 Size Class Magn. Class Spot Location
25 10 600 260 EKI S09E31
HMIIF
HMIBC

Solar flares on this day

M1.1 C6.7 C6.5 C4.5 C3.7 C5.3

Region 13962

Number of
sunspots		 Size Class Magn. Class Spot Location
6 2 120 DSO N17E40
HMIIF
HMIBC

Region 13964

Number of
sunspots		 Size Class Magn. Class Spot Location
17 3 475 295 DKI N07W37
HMIIF
HMIBC

Solar flares on this day

C4.9 M1.3 C7.9 C4.6 M2.0 C3.2 M1.5 C3.6 C4.0 M7.4 C5.7 C9.0 C3.6 C6.9 M2.1 M1.8 M1.11 C6.9 C4.0 C3.2 M1.0

Region 13965

Number of
sunspots		 Size Class Magn. Class Spot Location
1 100 10 HSX N15E53
HMIIF
HMIBC

Region 13966

Number of
sunspots		 Size Class Magn. Class Spot Location
2 10 BXO N04E08
HMIIF
HMIBC

Region 13967

Number of
sunspots		 Size Class Magn. Class Spot Location
2 30 HAX S18E72
HMIIF
HMIBC

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 storm2026/04/03Kp7- (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 202697.2 +11.3
Last 30 days95.6 +37.2

This day in history*

Solar flares
12025M3.24
22024M2.41
32025M2.31
42025M1.6
52025M1.41
DstG
11981-311G4
21990-108G1
31973-84G3
42001-77G3
51969-64
*since 1994

Aurora on this day in history

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