Solar Watch — August 23, 2026 | 18:00 UTC

☀ Helios Solar Watch · 2026-08-23 16:00 UTC
QUIET

Solar activity is currently stable with minimal geomagnetic disturbance across the globe. Observations indicate a quiet sun with no significant space weather impacts expected in the near term.

HMI Continuum Intensity

Visible light · 4 active regions

SUVI 304 — Extreme UV

Extreme UV · 304 Å

Kp Index
2.0
5 or above = storm

Geomagnetic
G0
24 h max: G0

X-Ray
A/B
quiet


⚠ Electron flux F3 reached · 4 more below
Next 24 h

Geomagnetic conditions are expected to remain at quiet levels, with Kp indices projected to stay below 2.0 throughout the next 24 hours.

more

No significant space weather events or disturbances to satellite operations or power grids are anticipated during this period.

🌌 Aurora

Aurora visibility is restricted to high-latitude polar regions.

more

Mid-latitude observers should not expect any auroral activity under these current geomagnetic conditions.

👁 Watch for

Monitor AR4513 for any rapid increases in magnetic complexity, as it currently holds the highest potential for C-class or M-class flare production.

▸ Detailed readings

Radio blackout
 R0
(24 h max R0)
Radiation
 S0
(24 h max S0)
F10.7
 102.0
sfu

Region Location Class Flares C/M/X
AR4517 N10E11 Cao/B 0/0/0
AR4513 N04E25 Eai/BG 3/0/0
AR4516 N17W44 Bxo/B 0/0/0
AR4515 S07E36 Hsx/A 0/0/0
NOAA messages
2026-08-23 09:21  Electron flux F3 reached (ALTEF3)
2026-08-21 09:45  SUM10R (SUM10R)
2026-08-20 20:49  ALTTP2 (ALTTP2)
2026-08-20 12:12  X-ray flare M5 summary (SUMXM5)
2026-08-20 11:39  X-ray flare MF reached (ALTXMF)


Helios Observer · Data: NOAA SWPC · updated every 12 h