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 Continuum

Regions due to return
Region Lat.
None
H-alpha plages without spots
Region Location
None
2735

Region 2735

Number of
sunspots
Size Class Magn. Class Spot Location
5 2 20 10 CRO N03E02
HMIIF HMIBC

Flare probabilities

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

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/03/17Kp5 (G1)
Number of spotless days in 2019:53
Current stretch spotless days:2

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*since 1994

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