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Sunspot

Last post 10-07-2009 5:34 AM by Emilia Kilpua. 1 replies.
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  • 10-06-2009 9:29 AM

    Sunspot

    Leslie S (Fx)

    Why do some spots happen as only one "spot", while others occur like a cluster? thanks

  • 10-07-2009 5:34 AM In reply to

    • Emilia Kilpua
    • Top 10 Contributor
    • Joined on 03-11-2008
    • University of Helsinki, Finland
    • Posts 61

    Re: Sunspot

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    Hi Leslie!

     

    As you may have noticed from the solar images, sunspots typically appear in pairs/groups. Sunspots form when bundles of magnetic field (flux tubes) arise inside the Sun to the surface. The magnetic field lines break through the surface from one spot and then go back inside through the other spot. Solar activity (e.g. flares and coronal mass ejections) and strong magnetic fields are concentrated in so-called active regions. Active regions may have several sunspot pairs. I think single sunspots you could find in the early or decay phase of the sunspot pair. Also sometimes a group of sunspot may appear like one big sunspot due to low resolution.

     


     

     

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