Kp-index

Kp-index forecast
Min. Max.
SaturdayKp2-Kp3
SundayKp2-Kp4
MondayKp1-Kp3

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
44204CAO
44234BXO
44248EAI
442510EHI
442818DAI
44298DSI
44302BXO
44319DSI
44321AXX
Today's Sun
Sunspot number 158 28
New regions3 2
10.7cm Solar Radio Flux145 2
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 99%
M-class solar flare 40%
X-class solar flare 5%

Latest news

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Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/04/28M1.11
Last geomagnetic storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (2%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
April 202679.3 -6.6
May 2026158 +78.7
Last 30 days90.5 -3.1

This day in history*

Solar flares
11998X1.61
22000M4.1
32024M2.7
42001M2.57
52013M1.61
DstG
11978-145G3
21977-98G2
32024-96G3
41960-95
51998-85G3
*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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