Viewing archive of Friday, 21 February 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
138 151 1C1.66M3.3962

Sunspot regions

Region 13989

Number of
sunspots
Size Class Magn. Class Spot Location
1 250 HHX N19W93
HMIIF
HMIBC

Region 13990

Number of
sunspots
Size Class Magn. Class Spot Location
3 -3 120 -130 CSO S09W78
HMIIF
HMIBC

Solar flares on this day

C5.8 C3.6

Region 13993

Number of
sunspots
Size Class Magn. Class Spot Location
3 170 -80 CSO N15W32
HMIIF
HMIBC

Region 13994

Number of
sunspots
Size Class Magn. Class Spot Location
1 5 AXX S19W0*
HMIIF
HMIBC

Region 13996

Number of
sunspots
Size Class Magn. Class Spot Location
8 330 FKO S16W17
HMIIF
HMIBC

Solar flares on this day

C7.6 C8.0

Region 13997

Number of
sunspots
Size Class Magn. Class Spot Location
2 -1 10 BXO N03W40
HMIIF
HMIBC

Region 13998

Number of
sunspots
Size Class Magn. Class Spot Location
22 4 220 EAI S14W02
HMIIF
HMIBC

Solar flares on this day

C4.4 C3.9

Region 13999

Number of
sunspots
Size Class Magn. Class Spot Location
3 20 CRO N06W20
HMIIF
HMIBC

Region 14000

Number of
sunspots
Size Class Magn. Class Spot Location
16 120 DAI N18E06
HMIIF
HMIBC

Solar flares on this day

M3.3 M1.4 C4.8

All times in UTC

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Space weather facts

Last X-flare2025/12/08X1.1
Last M-flare2025/12/08M1.2
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025162.7 +70.9
Last 30 days107.4 +11.4

This day in history*

Solar flares
12023M1.5
22014M1.23
32014M1.16
42023M1.0
52001C9.85
DstG
11993-62
21974-58G1
32003-53G1
41982-49G1
51976-48
*since 1994

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