Viewing archive of Friday, 18 April 2025 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
113 -51 -1C1.04M4.4751

Sunspot regions

Region 14056

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 30 HRX S07W87
HMIIF
HMIBC

Region 14060

Number of
sunspots
Size Class Magn. Class Spot Location
5 -3 80 -40 CAO N08W42
HMIIF
HMIBC

Solar flares on this day

C2.4 C2.2

Region 14062

Number of
sunspots
Size Class Magn. Class Spot Location
13 -5 300 20 DKI S03W13
HMIIF
HMIBC

Solar flares on this day

C1.8

Region 14063

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N05W19
HMIIF
HMIBC

Region 14064

Number of
sunspots
Size Class Magn. Class Spot Location
9 1 350 150 DKI N10E45
HMIIF
HMIBC

Solar flares on this day

C1.4 C2.6

Region 14065

Number of
sunspots
Size Class Magn. Class Spot Location
1 30 HSX S28E47
HMIIF
HMIBC

Region 14066

Number of
sunspots
Size Class Magn. Class Spot Location
7 -2 30 -10 CAO S03E33
HMIIF
HMIBC

Solar flares on this day

C1.6

Region 14067

Number of
sunspots
Size Class Magn. Class Spot Location
7 50 CSO S02E55
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 202694.2 +8.3
Last 30 days94.7 +34.5

This day in history*

Solar flares
12024M4.3
22025M4.2
32002M2.07
42023M1.5
52001M1.47
DstG
11973-134G4
21981-129G1
31971-121G4
41961-118G3
51990-104G2
*since 1994

Aurora on this day in history

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