Latest Helios Report

  • Solar Watch — May 29, 2026 | 18:00 UTC

    Solar Flare Activity — Last 12 Hours
    Peak: M-class @ 07:04 UTC (8h 56min ago)
      M @ 06:57 UTC

    ☀ HELIOS SOLAR WATCH · 2026-05-29 16:00 UTC
    Moderate solar activity continues with AR4455 producing M-class flare
    SOLAR: UNSETTLED
    GEO: QUIET

    Active Regions
    9
    X-Ray
    A/B (quiet)

    The Sun remains in an unsettled state following a recent M-class flare from AR4455. While background geomagnetic levels are currently stable at Kp 3, increased flare activity indicates an active region capable of moderate eruptions.

    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
    3.0
    0–9 scale · ≥5 = geomagnetic storm

    F10.7 Solar Flux
    106.0
    sfu · >150 = high activity

    Current solar activity is defined by 13 active regions, with AR4455 demonstrating the most significant magnetic complexity. The F10.7 flux is at 106 sfu, indicating moderate solar output. Geomagnetic conditions are currently unsettled with a Kp-index of 3.0, posing no immediate threat to terrestrial infrastructure or satellite operations.

    Key Metric

    The 50% probability for M-class flares is the most important metric, as it suggests the potential for continued radio degradation on the sunlit side of Earth.

    Geomagnetic conditions are expected to remain unsettled, with a projected peak of Kp 3.67 in the next 24 hours. There is a 50% probability of further M-class flare activity, though X-class events remain unlikely at this time.

    🌌 Aurora Outlook

    Aurora visibility is not expected at mid-latitudes (40-60°N) under current conditions. Observers at high latitudes may see minor auroral activity, but conditions are currently too quiet for displays further south.

    Region Location Class Flares C/M/X
    AR4455 N15E52 Eho/BG 1/1/0
    AR4454 S15E34 Hrx/A 0/0/0
    AR4453 N12W88 Axx/A 0/0/0
    AR4452 N10W48 Dai/BG 0/0/0
    AR4449 S10W02 Csi/B 0/0/0
    AR4448 S06E01 Bxo/B 0/0/0
    AR4447 S17W41 Csi/B 0/0/0
    AR4446 S16E03 Fho/BG 0/0/0
    AR4444 S21W35 Hsx/A 0/0/0
    2026-05-29 05:41:15.247Space Weather Message Code: WARK04
    2026-05-29 00:11:15.840Space Weather Message Code: WARK04
    2026-05-28 18:00:34.420Space Weather Message Code: ALTK04
    2026-05-28 17:17:48.867Space Weather Message Code: ALTK04
    2026-05-28 17:06:50.137Space Weather Message Code: ALTK04

    Monitor the magnetic evolution of AR4455 for signs of further flux emergence that could heighten the potential for more significant X-ray bursts.