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Solar and Aurora Activity Chat


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Posted
  • Location: Larbert
  • Location: Larbert

    Did you know.

    The Aurora Borealis (northern lights) and the Aurora Australis (southern lights) are negative mirror images of each other.

    If you take a full sky photo of the lights and compared them, the dark patches in the northern light photo would be where the light patches are in the southern one. And Visa Versa.

    Not a lot of people know that.

    http://www.gsfc.nasa.gov/topstory/20011025aurora.html

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    Just a few pics from early this morning at West Sands, St. Andrews  First one was 100iso eq @ f1.8 and 10 sec exposure, strong moonlight about midnight with the faintest of hint of an aurora.

    More shots here from Scotland last night. Fingers crossed again tonight as there is another predicted Kp7 ☺

    From Salon on the Isle Of Rum & The Isle Of Lewis tonight. Credit; Martin Keivers and Emma Mitchell.  

    Posted Images

    Posted
  • Location: Larbert
  • Location: Larbert

    http://www.nasa.gov/mission_pages/themis/main/index.html

    The Mission

    THEMIS is a mission to investigate what causes auroras in the Earth's atmosphere to dramatically change from slowly shimmering waves of light to wildly shifting streaks of color. Discovering what causes auroras to change will provide scientists with important details on how the planet's magnetosphere works and the important Sun-Earth connection.

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    Posted
  • Location: Mytholmroyd, West Yorks.......
  • Weather Preferences: Hot & Sunny, Cold & Snowy
  • Location: Mytholmroyd, West Yorks.......

    Now that sunspot 942 has dragged itself into view it doesn't look as big as I thought it might. With nothing on the farside it must have been resposible for the 'pop' earlier in the week so maybe it's on the way out now?

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    Posted
  • Location: Larbert
  • Location: Larbert

    I'd say so. Solar minimum has well and truly arrived. Probably reaching the bottom now. As the song goes "Things can only better" :cold:

    Edited by Mondy
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    • 2 weeks later...
    • 2 weeks later...
    Posted
  • Location: Larbert
  • Location: Larbert

    New predictions for the solar minimum are coming frequently of late. The monthly smoothed sunspot number forecast for the rest of 2007 from the NOAA Space Environment Center in the weekly Preliminary Report and Forecast has been adjusted again, the third time since the first of the year....Currently they predict a solar minimum for right now

    Jim Headrick of Stanfield, Oregon sent in a different prediction from the Australian government. It has the solar minimum centered on September 2007,

    http://www.southgatearc.org/propagation/20...rrl_march09.htm

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    Posted
  • Location: New York City
  • Location: New York City

    Does anyone happen to know if any year during the little ice age had no sunspots, or very little?

    Or does anyone have a link to the manually counted sunspot numbers pre 1749?

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    Posted
  • Location: Larbert
  • Location: Larbert

    This should help, Hiya.

    Unusually low solar activity, indicated by little or no sunspot activity, between 1645 and 1715 likely triggered the Little Ice Age in Europe and North America. During this event, known as the Maunder Minimum, astronomers observed only about 50 sunspots over a 30-year period as opposed to a more typical 40-50,000 spots. The sun normally shows signs of variability, such as its eleven-year sunspot cycle. Within that cycle, it goes from a minimum to a maximum period of activity represented by a peak in sunspots and flare activity.

    http://www.gsfc.nasa.gov/scienceques2005/20051128.htm

    http://www.gsfc.nasa.gov/topstory/20011207iceage.html

    Sunspots declined in 1615 and reached an all time low in 1670.

    http://space.balettie.com/Young.html

    Edited by Mondy
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    Posted
  • Location: Larbert
  • Location: Larbert

    Sure looks a biggie coming into view now: http://sohowww.nascom.nasa.gov/data/realtime/mdi_mag/512/

    If it is ex930/933 hope hasn't been producing further X-flares the far side and saved only B's and C's for Earth :D

    Remember this spot? Incredibly it's still hanging about!

    http://sohowww.nascom.nasa.gov/data/realtime/eit_284/512/

    Kev's site mentions it's old 930 (along with other numbers).

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    Posted
  • Location: Cornwall Ontario
  • Location: Cornwall Ontario

    Hey guys... things sure are quiet.. except for a bit of aurora because of the IMF and solar wind... perhaps another spot on the farside. I sure hope so !

    Cheers

    Kevin

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    • 3 weeks later...
    Posted
  • Location: South Shields Tyne & Wear half mile from the coast.
  • Location: South Shields Tyne & Wear half mile from the coast.

    The quiet sun through the sea mist 26/03/2007..

    Not a sunspot in sight..

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    Posted
  • Location: Mytholmroyd, West Yorks.......
  • Weather Preferences: Hot & Sunny, Cold & Snowy
  • Location: Mytholmroyd, West Yorks.......

    Day 10 of sunspot number Zilch! I wonder how long it'll last?

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    Posted
  • Location: Larbert
  • Location: Larbert

    It went 3 months without spots 11 years ago. Solar flux reached a low of 65 then too. The fkux is currently around 68, so easy to see the minimum is well and truly here.

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    • 2 weeks later...
    Posted
  • Location: Mytholmroyd, West Yorks.......
  • Weather Preferences: Hot & Sunny, Cold & Snowy
  • Location: Mytholmroyd, West Yorks.......

    May be a chance for aurora's in the far north on the 21st/22nd (solar wind stream) and if not then we're passing through the tail debris of comet 'thatcher' at the same time so maybe a meteor every 5 mins to keep you going whilst waiting!

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    Posted
  • Location: Mytholmroyd, West Yorks.......
  • Weather Preferences: Hot & Sunny, Cold & Snowy
  • Location: Mytholmroyd, West Yorks.......

    I'm still fixed in cycle 23 myself. Can't wait to see how it max's out in a few years, could be intersting!

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    Posted
  • Location: Larbert
  • Location: Larbert

    It's maxed out already GW :wallbash:

    Solar Cycle 23 peak seems to have been the month of April 2000

    Cycle 23 has ended or is ending now.

    The current sunspot cycle is number 23. It is expected to end early in 2007.

    http://www.spacetoday.org/SolSys/Sun/Sunspots.html

    Roll on 24 http://nwstatic.co.uk/forum/public/style_emoticons/<#EMO_DIR#>/dry.gif

    Edited by Mondy
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    Posted
  • Location: Mytholmroyd, West Yorks.......
  • Weather Preferences: Hot & Sunny, Cold & Snowy
  • Location: Mytholmroyd, West Yorks.......

    It's maxed out already GW :mellow:

    Cycle 23 has ended or is ending now.

    http://www.spacetoday.org/SolSys/Sun/Sunspots.html

    Roll on 24 ;)

    I thought we were entering 24 but then the article is nattering about the next one (being calm) being 23???? Too early in the morning for my poor head!!!

    Thanks for the confirmation though......

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