Kp-index

Kp-index forecast
Min. Max.
SundayKp2-Kp4
MondayKp1-Kp3
TuesdayKp2-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
44231AXX
44246DSO
44255CSO
442815DAI
442915DAI
44301AXX
44318DSO
44321AXX
44332DSO
Today's Sun
Sunspot number 133 -25
New regions0 -3
10.7cm Solar Radio Flux159 14
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 45%
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 2026145.5 +66.2
Last 30 days91 -4.3

This day in history*

Solar flares
12024X1.6
22022X1.1
32013M8.19
42023M7.2
51999M6.41
DstG
11967-123G3
21978-114G3
31976-107G4
41994-79G2
51977-77G1
*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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