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Aurora Borealis Viewing

Discussion in 'Space Exploration and the Cosmos' started by Opmmur, Apr 23, 2017.

  1. Opmmur

    Opmmur Time Travel Professor Premium

    Jun 11, 2004
    Likes Received:
    Aurora Borealis Viewing

    It appears as if the Aurora Borealis and Australis are only visible when
    there is a significant irregular output from the Sun.

    There is a local alert for people in the very Southern Oz States that
    they may be able to see Aurora Australis and this information from
    another source. Aurora USA - Aurora may be seen as low as New York to Wisconsin to Washington state.

    ALERT: Geomagnetic K-index of 6
    Threshold Reached: 2017 Apr 22 2359 UTC
    Synoptic Period: 2100-2400 UTC
    Active Warning: Yes
    NOAA Scale: G2 – Moderate

    NOAA Space Weather Scale descriptions can be found at


    Potential Impacts: Area of impact primarily poleward of 55 degrees
    Geomagnetic Latitude.

    Induced Currents - Power grid fluctuations can occur. High-latitude
    power systems may experience voltage alarms.

    Spacecraft - Satellite orientation irregularities may occur; increased
    drag on low Earth-orbit satellites is possible.

    Radio - HF (high frequency) radio propagation can fade at higher latitudes.
    TimeFlipper likes this.