Solar Section        

 
 

October 20, 2019

A Short Summary of Carrington Rotation 2222

Carrington Rotation CR2222 covered the time period from 2019-09-19 0347 UT – 2019-10-16 1033 UT.
At the time of this writing 179 Images/Observations were submitted for the archives, which does not include observations of those who submit their images at the end of the month. The submissions can be viewed in ALPO’s Solar Archive for CR2222:
http://alpo-astronomy.org/gallery3/index.php/Solar-Observations-Archive/SolarImages2019/CR2222
The rotation brought us one short lived active region, AR2749 with a Wolf Number of 11, which lasted two days. However, SWPC recorded it size as 0 millionths. During the rotation we had 25 spotless days . The Rotation continued the transition from C24 to C25 with a number of reverse polarized areas. See our .pdf of the Reverse Polarized Areas Overview which includes the latest updates by clicking here. Overall Solar Activity remained Very Low and the rotation increased the spotless days count since solar maximum to 577. Finally, the Sun produced 4 A-class, 1 B, and no C-class flares during the rotation.
This time we would like to feature an image submitted by Guilherme Grassman, a drawing by Michel Deconinck, and a CaK image by Howard Eskildsen, of AR2749. Please click the thumbnails below to see the full image. Thanks to all contributors for another great rotation. Please take a look at all the drawings/images by clicking on the link above which will bring you to our archive for CR2222.
Clear Skies,
Theo Ramakers
Assistant Coordinator, the ALPOSS

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