Solar Section        

 
 

March 27, 2018

A Short Summary of Carrington Rotation 2201

Carrington Rotation 2201 covered the time period from 2018-02-23 1448 UT – 2018-03-22 2229 UT .
124 Submissions were submitted at the time of this writing. The submissions can be viewed in ALPO’s Solar Archive for CR2201:

http://alpo-astronomy.org/gallery3/index.php/Solar-Observations-Archive/SolarImages2018/CR2201

This rotation only showed active regions for 8 days of the rotation, spread over three short periods. AR2700 was only visible for 5 days relative early in the rotation and covered only 10 millionths except for the first day when it recorded 30 millionths. This region was followed late in the rotation with a one day appearance of AR2701 covering only 10 millionths and two days later AR2702 for two days covering 10 millionths. The highest Wolf Number of 16 was recorded on February 22, which also accounted for the highest Active Region Area of 30 millions. The rotation ended with spotless day 183.

For this rotation we would like to feature three observations submitted by three of our observers, Guilherme Grassmann, Howard Eskildsen, and Theo Ramakers. Thanks to them, as well as all other contributors for another great rotation. Please take a look at all the drawings/images by clicking on the link above which links to our archive for CR2201.
Clear Skies,
Theo Ramakers
Assistant Coordinator, the ALPOSS

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