The Dutch Observatory

Did not expect it but we did have clear skies   AR2766 remains stable and unchanged with 60 millionths and one spot.  The unnamed area in the NE, now shows near the central median in the Northern hemisphere but remains unnamed so far.  In addition a prom was visible at the Eastern limb.  Today full disk images as well as close ups of the two regions and the prom.

Clear Skies today with good seeing.  Today, AR2776 moves further to the Western limb and a plage which was visible yesterday near the NE limb is very visible in Ha and CaK.  I could not make out a spot in 540nm.  AR2776 covers 60 millionths and still shows one spot.  Today full disk images and close ups of the two regions mentioned.

A very few openings between clouds, so only full disk images today.  AR2776 is steadily tracking towards the Western limb as it slowly decays.  Yesterday to 80, and today to 60 millionths, and it’s got one sunspot left.

Clear skies today.  The plage I mentioned yesterday near the SW limb developed a spot which was named AR2777, covering 10 millionths.  However this morning it had turned to the far side, so we only see AR2776.  AR2776 has grown a little more to 100 millionths.  The light bridge which was visible in yesterday’s images has mostly disappeared.  We’ll have to wait and see what happens next to AR2776.

Clear skies for another observation session.  AR2776 has grown a little to 80 millionths, and has shown some B-class flaring.  In addition, a plage could be observed near the SW limb.  The NE and SE limbs showed a few proms, but some thin clouds made it hard to get a good focused image. Today full disk images and close ups of the Proms and AR2776.

Clear skies with better seeing than yesterday.  AR2776 has doubled in size to 60 millionths, but still supports 4 spots.  Today again full disk images and close ups of AR2776 in the three wavelengths.

Just time enough between the clouds to image the Sun.  The area that emerged on the 14th has been named as AR2776 and measures 30 millionths with 4 spots.  The plage from AR2775 is ready to turn to the far side but still showed nice for a close up in Ha.  Today full disk images and close ups in the three wavelengths.

Clear skies, but the seeing was pretty poor, which impacted the close up images.  A new region has turned from the far side of the Sun but is not named yet and shows two possible spots.  Today full disk images and close ups of the new region and the plage and faculae of the old AR2775.

I had to dodge some early cloud streaks from Delta.  However my patience paid off and got full disk images as well as close ups of a pore in the SE quadrant in all three wavelengths.   SWPC mentions a possible new named Spot, but is awaiting confirmation of the USAF observatories around the world.  So we’ll await the midnight report.

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