Viewing archive of Thursday, 28 December 2023 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
83 51B7.56C2.154

Sunspot regions

Region 13521

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HSX N11W0*
HMIIF
HMIBC

Region 13529

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 130 -140 EAO S20W76
HMIIF
HMIBC

Region 13530

Number of
sunspots
Size Class Magn. Class Spot Location
4 -2 10 -40 BXO N08W59
HMIIF
HMIBC

Region 13531

Number of
sunspots
Size Class Magn. Class Spot Location
2 90 -60 CSO S19W34
HMIIF
HMIBC

Region 13533

Number of
sunspots
Size Class Magn. Class Spot Location
7 6 30 20 DAO N15W36
HMIIF
HMIBC

Solar flares on this day

C1.8 C1.5

Region 13534

Number of
sunspots
Size Class Magn. Class Spot Location
5 1 10 -10 BXO S12E49
HMIIF
HMIBC

Solar flares on this day

C1.0

Region 13535

Number of
sunspots
Size Class Magn. Class Spot Location
3 10 BXO S05W18
HMIIF
HMIBC

All times in UTC

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Last X-flare2025/03/28X1.1
Last M-flare2025/04/30M2.03
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Spotless days
Last spotless day2022/06/08
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April 2025140.6 +6.4
May 202566.5 -74.1
Last 30 days111.6 -20.3

This day in history*

Solar flares
12015X3.93
22024X1.32
32024X1.2
42024M8.42
52024M7.47
DstG
11998-119G3
21989-86G3
31959-72G2
41978-72
51986-62G1
*since 1994

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