The Dutch Observatory

October 7, 2020
A Short Summary of CR2235
Carrington Rotation CR2235 covered the time period from 2020-09-07 1745 UT – 2020-10-05 0018 UT.
The observations can be viewed in my Solar Archive for CR2235 which can be accessed at: http://ceastronomy.org/gallery/main.php?g2_itemId=51093
The rotation brought us 25 spotless days and ended a spotless streak of 33 days  on 9/24, which extended out of the previous rotation. We saw a small and very unstable new region AR2773, which appeared on two days, 9/24 and 9/26, each for less than 24 hours. Although its plage could be followed until it rotated around the Western limb, no spots were recorded for the rest of the rotation.   The size of the Active Region was 10 millionths on both days, giving a Total Region Active Region Area of 20 millionth, while the largest Wolf Number of 13 was recorded on 9/25. Overall Solar Activity remained Very Low while the rotation increased the spotless days count since solar maximum to 851 spotless days. Finally, during the period SWPC reported 1 A-class, 19 B class flares, of which 14 happened on 9/21, and one C1.0-class flare. The C-class Flare, was observed on 09/25/2020.

This time I would like to feature some images showing the plage of the old AR2773 on three consecutive days, before it turned to the far side of the Sun.
Clear Skies,
Theo Ramakers

Clear skies with another spotless Sun. We can make out three small areas in CaK in the SE quadrant. We’ll just have to wait and see…..