Viewing archive of Sunday, 18 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 fluxC
81 -21B7.29C2.73

Sunspot regions

Region 12431

Number of
sunspots
Size Class Magn. Class Spot Location
3 2 20 CSO S18W19
HMIIF
HMIBC

Region 12432

Number of
sunspots
Size Class Magn. Class Spot Location
3 -1 10 BXO S21W38
HMIIF
HMIBC

Region 12434

Number of
sunspots
Size Class Magn. Class Spot Location
20 -2 260 110 DKI S10E20
HMIIF
HMIBC

Region 12435

Number of
sunspots
Size Class Magn. Class Spot Location
1 30 10 HAX S15E60
HMIIF
HMIBC

Region 12436

Number of
sunspots
Size Class Magn. Class Spot Location
6 80 DAI N09E71
HMIIF
HMIBC

Solar flares on this day

C2.15 C1.93

All times in UTC

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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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