Sun lights up day and night (some places) in early November

Photo: Train of Sunspots, November 4, 2105. Photo by James Guilford.

Train of Sunspots, November 4, 2015. Credit: James Guilford

An impressive train of sunspots has been making its way across the face of our nearest star this week. In the photo above: Designated AR2447 (small group to the left), AR2443 (bigger and darker, near center), and AR2445 (far right), the “Active Regions” have the potential of unleashing flares. In fact, AR2445 was the source of a flare that caused this week’s “northern lights” sighted across northern latitude locations around the world. Now rotating over the Sun’s limb, AR2445 won’t be aimed at Earth for a while — if ever again — but AR2443 has potential for high-energy flares.

Photo credit: James Guilford. Canon EOS 7D II: ISO 400, f/11, 1/1250 sec., 400mm lens with Astrozap film solar filter, heavily cropped, November 4, 2015.

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I am Webmaster for the Cuyahoga Astronomical Association. I also participate in outreach programming in public observing and occasional presentations on behalf of the CAA and a local college.
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