Viewing archive of Wednesday, 21 October 2015 - Sunspot regions

It appears that the image of the visible solar disk for this day in history is missing.
Sunspot number New regionsBackground fluxMaximum fluxCM
73 -40B6.86M1.1181

Sunspot regions

Region 12434

Number of
sunspots
Size Class Magn. Class Spot Location
14 -2 210 -20 DAI S10W22
HMIIF
HMIBC

Region 12435

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 HSX S15E17
HMIIF
HMIBC

Region 12436

Number of
sunspots
Size Class Magn. Class Spot Location
18 -2 240 -20 EAI N09E30
HMIIF
HMIBC

Solar flares on this day

C2.49 C1.03 C2.33 C8.96 C3.93 C3.74 C2.43 C1.66 M1.1

Region 12437

Number of
sunspots
Size Class Magn. Class Spot Location
4 -2 50 -10 CAO S20E46
HMIIF
HMIBC

All times in UTC

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Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024166 -0.4
Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
41989-105
51979-90G1
*since 1994

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