Windy Sunday

THE SOLAR WIND IS COMING: A hole in the sun’s atmosphere is turning to face Earth, and it is spewing a stream of solar wind in our direction. NASA’s Solar Dynamics Observatory photographed the structure on Jan. 19th:

This is a “coronal hole”–a region where the sun’s magnetic field opens up and allows solar wind to escape. Emerging faster than 600 km/s, the gaseous material is expected to reach our planet on Jan. 22nd or 23rd.

We’ve seen this coronal hole before. It opened in July 2018 and has been spinning around with the sun, lighthouse-style, lashing Earth with solar wind once a month since then. In late Dec. 2018, it sparked a G1-class geomagnetic storm with strong bursty auroras around the Arctic Circle.


About Den

Always in search of interesting things to post. Armed with knowledge and dangerous with the ladies.
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12 Responses to Windy Sunday

  1. Den says:

    TeeVee commercial; Trumpy Bear stuffed animal, only two payments of $19.95, and as a bonus they include a free fry pan to whack Liberals with, WoW!


  2. David B. Benson says:

    Lightly snowing.


  3. Den says:

    No Eclipse visible here, still raining. 😦


  4. David B. Benson says:

    The Guardian has an article on the 100th anniversary of the Bauhaus. Certainly proved to be influential.


  5. Den says:

    Gusty winds ahead, oops


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