Kp-index

Kp-index forecast
Min. Max.
WednesdayKp1-Kp3
ThursdayKp1-Kp3+
FridayKp2+Kp5

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
44042CSO
44052CSO
44061HRX
44081HSX
440920ESI
44121AXX
44134CRI
44143CRO
44151HSX
Today's Sun
Sunspot number 110 -2
New regions2 2
10.7cm Solar Radio Flux109 -7
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 90%
M-class solar flare 35%
X-class solar flare 10%

Latest news

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
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 2026121 +35.1
Last 30 days101.1 +44.7

This day in history*

Solar flares
12000M2.97
22023M2.9
32000M2.66
42015M2.06
51999M1.66
DstG
11995-102G1
21984-99G2
32000-87
41959-71G1
51960-64
*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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