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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Last X-flare2024/09/14X4.54
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Spotless days
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Monthly mean Sunspot Number
August 2024215.5 +19
September 2024149.4 -66.1
Last 30 days156.7 -55.8

This day in history*

Solar flares
12023M8.2
22015M3.13
31998M2.71
42002M2.66
52002M2.21
DstG
11989-93
21977-85G2
32015-81G3
41959-77G2
51967-65G2
*since 1994

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