Sunspot regions Help

On this page you'll find an overview of all the visible sunspot regions on the Sun together with their properties, images and the chances on solar flares or proton events. This page is updated daily and the sunspot images every hour.

Solar Dynamics Observatory HMI Intensitygram

43054307430843104311
Today's Sun
Sunspot number 81 8
New regions1
10.7cm Solar Radio Flux119 2
Carrington Rotation2305
Sunspot regions
RegionNumber of
sunspots
Class
Magn.
Class
Spot
43051HSX
43075DAO
43082AXX
43104CRO
43116CSO
Regions due to return
Region Lat.
4302S04
4301S09
H-alpha plages without spots
Region Location
4303S25W88
4309S09W76

Region 4305

Number of
sunspots
Size Class Magn. Class Spot Location
1 60 10 HSX S25W73
4305 - HMIIF 4305 - HMIBC

Flare probabilities

C M X Proton
10% 1% 1% 1%

Region 4307

Number of
sunspots
Size Class Magn. Class Spot Location
5 -1 110 DAO S15W72
4307 - HMIIF 4307 - HMIBC

Flare probabilities

C M X Proton
35% 10% 1% 1%

Solar flares from today

C1.3 C1.0

Region 4308

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 10 -10 AXX N08W11
4308 - HMIIF 4308 - HMIBC

Flare probabilities

C M X Proton
5% 1% 1% 1%

Region 4310

Number of
sunspots
Size Class Magn. Class Spot Location
4 -2 20 10 CRO N01W50
4310 - HMIIF 4310 - HMIBC

Flare probabilities

C M X Proton
15% 1% 1% 1%

Region 4311

Number of
sunspots
Size Class Magn. Class Spot Location
6 3 50 30 CSO N03E04
4311 - HMIIF 4311 - HMIBC

Flare probabilities

C M X Proton
15% 1% 1% 1%

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Space weather facts

Last X-flare2025/12/08X1.1
Last M-flare2025/12/12M1.1
Last geomagnetic storm2025/12/12Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025131.8 +40
Last 30 days108.3 +14.5

This day in history*

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DstG
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*since 1994

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