Kp-index

Kp-index forecast
Min. Max.
FridayKp2+Kp5
SaturdayKp3+Kp5+
SundayKp2+Kp4+

Real Time Solar Wind

With the current speed, it will take the solar wind 60 minutes to propagate from ACE to Earth.
Solar wind
Speed: km/sec
Density: p/cm3
Interplanetary Magnetic Field
Bt: nT
Bz: nT

Sunspot regions

Solar Dynamics Observatory HMI Continuum
Sunspot regions
RegionNumber of
sunspots
Class
Magn.
Class
Spot
44081HSX
440920ESI
44134CRI
44142CRO
44151HSX
44164DRO
Today's Sun
Sunspot number 79 -24
New regions0 -1
10.7cm Solar Radio Flux98 -10
Carrington Rotation2309

Solar flares

SDO AIA 131
Solar activity past two hours
Current value
2h max
24h max
More data Help
Flare probability
C-class solar flare 50%
M-class solar flare 5%
X-class solar flare 1%

Latest news

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026114.3 +28.4
Last 30 days102.4 +48.5

This day in history*

Solar flares
12001X3.14
22002X1.17
32023M2.83
42002M2.34
52000M1.23
DstG
11990-281G4
21982-137G3
31957-124G3
41959-122G4
51960-81G3
*since 1994

Aurora on this day in history

Discover more observations in our archive!

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