Viewing archive of Tuesday, 15 March 2016 - 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
44 -130 -1B2.71C1.493

Sunspot regions

Region 12513

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 -20 HSX N08W83
HMIIF
HMIBC

Region 12519

Number of
sunspots
Size Class Magn. Class Spot Location
1 -4 80 HSX N05E08
HMIIF
HMIBC

Region 12521

Number of
sunspots
Size Class Magn. Class Spot Location
12 5 80 DAO N19W09
HMIIF
HMIBC

Solar flares on this day

C1.86 C1.44 B8.68 C1.19 B6.97

Region 12522

Number of
sunspots
Size Class Magn. Class Spot Location
3 40 CAO N14W56
HMIIF
HMIBC

All times in UTC

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Last X-flare2025/12/08X1.1
Last M-flare2026/01/11M3.3
Last geomagnetic storm2026/01/11Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
January 202696.8 -27.3
Last 30 days98.4 -9.3

This day in history*

Solar flares
12015M8.1
22015M7.09
32023M3.9
42002M3.2
52013M2.47
DstG
11999-112G3
21996-90G1
31967-86G2
41989-70
51992-69G1
*since 1994

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