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Stargazing Aurora Alert for 6th and 7th Sept

  1. Sep 5, 2017 #1

    davenn

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    A Geomagnetic Storm alert has been released following a CME ( Coronal Mass Ejection) caused by one or more of the flares over the last 24 hours
    As with last time, those of you living in higher latitudes 45 deg North or South. Canada, nthrn USA, Alaska, nthrn Europe, Iceland, southern New Zealand and Tasmania - Australia. Keep an eye on the sky during your dark hours.

    http://www.spaceweather.com/
    cme_c3_anim.gif
     
    Last edited: Sep 5, 2017
  2. jcsd
  3. Sep 5, 2017 #2

    davenn

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    get ya cameras ready people !!!!
    it's been a long time since we have seen a major to severe storm warning

    SWS GEOMAGNETIC DISTURBANCE WARNING 17/42
    ISSUED AT 0108UT/06 SEPTEMBER 2017
    BY THE AUSTRALIAN SPACE FORECAST CENTRE.

    Expect an increase in geomagnetic activity to Active to Major
    Storm conditions with possible cases of Severe Storm conditions
    at higher latitudes. Active to Major Storm conditions for 7 September
    due to continuing CME effects which will gradually decrease over
    8 September.

    INCREASED GEOMAGNETIC ACTIVITY EXPECTED
    DUE TO CORONAL MASS EJECTION
    FROM 06-08 SEPTEMBER 2017
    _____________________________________________________________

    GEOMAGNETIC ACTIVITY FORECAST
    06 Sep: Active to Major Storm
    07 Sep: Active to Major Storm
    08 Sep: Active
     
  4. Sep 6, 2017 #3
    Looking forward to ... !
     
  5. Sep 6, 2017 #4
  6. Sep 6, 2017 #5

    davenn

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    GEOMAGNETIC STORMS POSSIBLE TONIGHT: The first of two CMEs en route to Earth has arrived. First contact occured on Sept. 6th at approximately 23:45 UT. NOAA forecasters say that moderately-strong G2-class geomagnetic storms with isolated periods of even stronger G3-class storming are possible in the hours ahead as Earth moves through the CME's magnetized wake.

    Solar wind
    speed: 596.8 km/sec
    density: 19.8 protons/cm3
    more data: ACE, DSCOVR
    Updated: Today at 0242 UT
     
  7. Sep 6, 2017 #6

    davenn

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    approx saturday
    CME speed will be quite substantial .... probably 750 - 900 km/sec


    D
     
  8. Sep 11, 2017 #7
    It looks like yesterday's (Sept. 10) last X-class flare [X8.2] (of group 2673 - now rotated over limb), although close to limb produced a halo CME (i.e. with earth directed component), due to arrive around 12 Sept. (i.e. tomorrow). Does this mean more aurora activity from 2673?

    See also video and description:
     
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