Kp-index

Kp-index forecast
Min. Max.
TuesdayKp2Kp4+
WednesdayKp1+Kp3-
ThursdayKp2+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
44252HSX
44289EAO
442916CAI
44301AXX
44315ESO
44326CAI
44338DSO
44341AXX
44351HSX
Today's Sun
Sunspot number 143 5
New regions2 1
10.7cm Solar Radio Flux138 -5
Carrington Rotation2310

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 90%
M-class solar flare 30%
X-class solar flare 5%

Latest news

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Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/05/04M1.9
Last geomagnetic storm2026/05/04Kp6+ (G2)
Spotless days
Last 365 days3 days
20263 days (2%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
April 202679.3 -6.6
May 2026143 +63.7
Last 30 days92.9 -5

This day in history*

Solar flares
12015X3.93
22024X1.32
32024X1.2
42024M8.42
52024M7.47
DstG
11998-119G3
21989-86G3
31978-72
41959-72G2
51986-62G1
*since 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation

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