Viewing archive of Wednesday, 18 September 2024 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
106 -341C1.06C4.14

Sunspot regions

Region 13822

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N14W99
HMIIF
HMIBC

Region 13824

Number of
sunspots
Size Class Magn. Class Spot Location
12 -13 100 EAI S04W69
HMIIF
HMIBC

Solar flares on this day

C2.1

Region 13825

Number of
sunspots
Size Class Magn. Class Spot Location
25 -10 200 20 EHI S15W07
HMIIF
HMIBC

Solar flares on this day

C3.0

Region 13827

Number of
sunspots
Size Class Magn. Class Spot Location
3 2 100 -20 CKO S26E33
HMIIF
HMIBC

Region 13828

Number of
sunspots
Size Class Magn. Class Spot Location
1 140 20 CHO S13E45
HMIIF
HMIBC

Solar flares on this day

C4.1

Region 13829

Number of
sunspots
Size Class Magn. Class Spot Location
4 -1 30 -20 BXO N11W62
HMIIF
HMIBC

Region 13830

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX N15W71
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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