Actividade Solar 2017

Tópico em 'Astronomia' iniciado por luismeteo3 2 Abr 2017 às 21:16.

  1. luismeteo3

    luismeteo3
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    Cumulonimbus

    Registo:
    14 Dez 2015
    Mensagens:
    3,063
    Local:
    Fatima
  2. luismeteo3

    luismeteo3
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    Cumulonimbus

    Registo:
    14 Dez 2015
    Mensagens:
    3,063
    Local:
    Fatima
    ALERT: Geomagnetic K-index of 7
    Threshold Reached: 2017 May 28 0419 UTC
    Active Warning: Yes
    NOAA Scale: G3 - Strong


    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation

    Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.

    Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.

    Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.

    Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased
    range error may occur.

    Radio - HF (high frequency) radio may be intermittent.

    Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon

    http://solarham.net/planetk.htm
    http://solarham.net/bulletins.htm
     
  3. Toby

    Toby
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    Cumulus

    Registo:
    25 Mar 2011
    Mensagens:
    238
    Local:
    Alcobaca (160 m)
    [​IMG]
     
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  4. luismeteo3

    luismeteo3
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    Cumulonimbus

    Registo:
    14 Dez 2015
    Mensagens:
    3,063
    Local:
    Fatima

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