Solar Watch — May 20, 2026 | 18:00 UTC

☀ HELIOS SOLAR WATCH · 2026-05-20 16:00 UTC
Solar activity remains low with quiet geomagnetic conditions
SOLAR: MODERATE
GEO: QUIET

Active Regions
5
X-Ray
A/B (quiet)

The sun is currently in a period of relative calm with no significant geomagnetic storms or radio blackouts. Current solar flux levels remain low, indicating a subdued state of solar activity.

HMI Continuum Intensity

HMI Continuum · Visible Light

SUVI 304 — Extreme UV

SUVI 304Å · Extreme Ultraviolet

R0
Radio Blackouts
24h max: R0

S0
Solar Radiation
24h max: S0

G0
Geomagnetic Storm
24h max: G0

Planetary Kp-Index
1.7
0–9 scale · ≥5 = geomagnetic storm

F10.7 Solar Flux
98.0
sfu · >150 = high activity

The planetary K-index sits at a stable 1.7, confirming quiet geomagnetic conditions across the globe. With an F10.7 flux of 98.0 sfu, ionizing radiation levels are at a baseline state. Seven active regions are present, but their current magnetic complexity remains low, minimizing the immediate risk of high-level X-ray flaring.

Key Metric

The F10.7 solar flux of 98.0 sfu indicates a low level of solar radio emissions, consistent with the currently quiet solar cycle environment.

Geomagnetic activity is expected to remain quiet, with Kp levels hovering around 2.0. No significant impulsive solar events or coronal mass ejections are anticipated in the next 24 hours.

🌌 Aurora Outlook

Aurora visibility for mid-latitudes (40-60°N) is unlikely at this time. Observers should not expect any significant displays as the geomagnetic field remains undisturbed.

Region Location Class Flares C/M/X
AR4443 S16E23 Axx/A 0/0/0
AR4439 N06E16 Cao/B 1/0/0
AR4436 N18W78 Cso/B 0/0/0
AR4441 N07W29 Dao/B 0/0/0
AR4440 N17E15 Axx/A 0/0/0
2026-05-20 10:06:55.493Space Weather Message Code: ALTEF3
2026-05-19 23:56:50.663Space Weather Message Code: WARK04
2026-05-19 20:57:51.727Space Weather Message Code: WARK04
2026-05-19 16:42:16.093Space Weather Message Code: WARK04
2026-05-19 08:55:28.143Space Weather Message Code: ALTK04

Monitor AR4439 as it rotates further onto the solar disk, as it currently holds the highest potential for minor C-class flare activity.