May 4, 2020 on 10:29 pm | In Carrington Rotation Review | Comments Off

A Short Summary of CR2229

Carrington Rotation CR2229 covered the time period from 2020-03-28 0857 UT – 2020-04-24 1529 UT.
The observations can be viewed in my Solar Archive for CR2229 which can be accessed at:
The rotation brought us 22 spotless days with a streak of 19 days. We had one Active Region, AR2759, which emerged on 3/31/2020 and lasted for 5 days. The region’s maximum coverage was 30 millionths on April 3 and 4, when it supported 2 and respectively 3 spots. Overall Solar Activity remained Very Low and the rotation increased the spotless days count since solar maximum to 738 spotless days. Finally, during the period SWPC reported three A-class, seven B class and no C-class flares.
At this time I would like to feature some combination images showing AR2759 in three different wavelenghts on three different days.

2020-04-02-1438_4-TR-540nm-AR2759 45Combo.jpg 2020-04-03-1433_7-TR-Ha-AR2759-Combo.jpg 2020-04-04-2138_6-TR-Ha-AR2759-Combo.jpg

Clear Skies,
Theo Ramakers

May 4, 2020 on 9:53 am | In Sun | Comments Off

Another day with clear skies and good seeing.  But the Sun remains spotless.  A plage is noted in the SE quadrant in CaK and we have two nice prominences. The one in the SE and another one at the opposite side at the NW limb.

2020-05-04-1259_9-TR-540nm.jpg 2020-05-04-1308_3-TR-Ha.jpg 2020-05-04-1321_5-TR-CaK.jpg

2020-05-04-1315_6-TR-Ha-SEProm-Film.jpg 2020-05-04-1317_0-TR-Ha-NWProm.jpg

May 3, 2020 on 10:08 am | In Sun | Comments Off

Clear skies again with good seeing.  The Sun remains spotless.  The old AR2760 is getting ready to turn to the far side of the Sun and a new plage can be seen in the SE quadrant.  Also the filament from yesterday is still visible, although less distinct. So today I made a close up of it.  Full disk images today and close ups of the old AR2760 and the Filaprom.

2020-05-03-1255_1-TR-540nm.jpg 2020-05-03-1302_2-TR-Ha-2.jpg 2020-05-03-1312_4-TR-CaK.jpg

2020-05-03-1307_0-TR-Ha-SEFilaprom.jpg 2020-05-03-1308_0-TR-Ha-oldAR2760.jpg

May 2, 2020 on 9:55 am | In Sun | Comments Off

Today sunny skies and great seeing.  Another spotless day on the Sun.  However, the plage from the old AR2760 can nicely be seen.  So we have started another spotless streak count.  Also, we have a very nice prominence at the SE limb.  But guess what.  I forgot to image this filaprom.  Shame on me.  Today full disk images and the closeup of the old AR2760 in Ha.

2020-05-02-1324_4-TR-540nm.jpg 2020-05-02-1333_1-TR-Ha.jpg 2020-05-02-1336_0-TR-CaK.jpg


May 1, 2020 on 1:24 pm | In Sun | Comments Off

And then they were gone!  Clear Skies today.  Following a day where a new Active region, AR2763 was noted in the NE, and three active regions were registered. This morning all of the four regions we have seen over the last four days have decayed to plages.  The four regions can clearly be seen in the Ha and CaK images, but in the continuum image of the largest and distinct area you don’t see a spot anymore.  Today full disk images and close ups of the mentioned regions.

2020-05-01-1438_6-TR-540nm-AR2760-62-63.jpg 2020-05-01-1445_7-TR-Ha-AR2760-62.jpg 2020-05-01-1455_1-TR-CaK-AR2760-02-63.jpg

2020-05-01-1451_3-TR-Ha-AR2763.jpg 2020-05-01-1449_3-TR-Ha-AR2760-61.jpg 2020-05-01-1450_5-TR-Ha-AR2762.jpg

2020-05-01-1458_7-TR-CaK-AR2763.jpg 2020-05-01-1457_3-TR-CaK-AR2760.jpg 2020-05-01-1458_0-TR-CaK-AR2762.jpg


April 29, 2020 on 10:56 am | In Sun | Comments Off

Clear skies just before the clouds came in for the next storms, and just enough for an observing session.  It looks like the old AR2760 shows some pores again and a new area with a pore shows in the NW quadrant. The second area from yesterday was named for a short period of time as AR2761 but then downgraded as a plage and did not make it in the daily summary.  (This is similar to AR2752).  Maybe ready for two named Active Regions tomorrow, but it will be cloudy here.  Today full disk images as well as close ups of the mentioned regions.

2020-04-29-1301_4-TR-540nm.jpg 2020-04-29-1308_3-TR-Ha-Plages.jpg 2020-04-29-1317_7-TR-CaK-Plages.jpg

2020-04-29-1303_6-TR-540nm-Old2760.jpg 2020-04-29-1310_7-TR-Ha-Old2760-61.jpg 2020-04-29-1322_5-TR-CaK-SPlages.jpg

2020-04-29-1311_2-TR-Ha-NewRegion.jpg 2020-04-29-1323_2-TR-CaK-NewArea.jpg

April 28, 2020 on 11:59 am | In Sun | Comments Off

Clouds gave way to clear skies with relative good seeing.  AR2760 is still visible and the pores from yesterday have now been named AR2761 this morning.  However during my observing session it was not visible in continuum, and only visible as a plage in Ha and CaK.  I tried some higher magnification today on both areas in Ha.  Today full disk images and close ups of the two regions.

2020-04-28-1359_8-TR-540nm-AR2760-61.jpg 2020-04-28-1412_8-TR-Ha-AR2760-61.jpg 2020-04-28-1426_0-TR-CaK-AR2760-61.jpg

2020-04-28-1404_5-TR-540nm-AR2760.jpg 2020-04-28-1414_5-TR-Ha-AR2760-61.jpg 2020-04-28-1435_7-TR-CaK-AR2760-61.jpg

2020-04-28-1419_7-TR-Ha-AR2760.jpg 2020-04-28-1422_1-TR-Ha-Ar2761.jpg

April 27, 2020 on 12:33 pm | In Sun | Comments Off

Clear Skies with average seeing this morning.  AR2760 has now 4 spots and still covers 10 millionths.  Another pore has appeared just West of the Meridian in the Southern hemisphere.  Two pores can be seen in the images.  Today full disk images and close ups of the regions in the three wavelengths.

2020-04-27-1436_2-TR-540nm-AR2760-Pore.jpg 2020-04-27-1445_3-TR-Ha-AR2760-Pore.jpg 2020-04-27-1452_7-TR-CaK-AR2760-Pore.jpg

2020-04-27-1447_5-TR-Ha-AR2760-SWPore.jpg 2020-04-27-1455_9-TR-CaK-AR2760-SWPore.jpg

2020-04-27-1439_6-TR-540nm-AR2760.jpg 2020-04-27-1439_1-TR-540nm-SWPore.jpg

April 26, 2020 on 12:24 pm | In Sun | Comments Off

Clear skies today but very windy and unstable seeing.  The pore from yesterday has increased and is now named AR2760, covering 10 millionths. It also seems to have developed a following spot.  We also can see some small light bridges crossing the spot in 540nm.  This marks the end of the current spotless streak of 20 days.  The faint proms from yesterday are nicely visible today.  Full disk images and close ups of the mentioned regions.

2020-04-26-1512_2-TR-540nm-AR2760.jpg 2020-04-26-1518_6-TR-Ha-AR2760.jpg 2020-04-26-1529_1-TR-CaK-AR2760.jpg

2020-04-26-1514_1-TR-540nm-AR2760.jpg 2020-04-26-1524_7-TR-Ha-AR2760.jpg 2020-04-26-1531_6-TR-CaK-AR2760.jpg


April 25, 2020 on 11:57 am | In Sun | Comments Off

The clouds started to break, but the observing session was a “cat and mouse game” to find clearances between clouds.  But I managed to get the full disk images as well as some close ups in all three wavelengths.   However the seeing conditions were not good.  Today’s Sun is spotless but showed a small pore in WL and a small plage in Ha and CaK.  No region number has been assigned to it.  Today full disk images as well as close up of the region and a few faint filaments to the North.

2020-04-25-1336_3-TR-540nm-pore.jpg 2020-04-25-1344_8-TR-Ha-pore.jpg 2020-04-25-1352_7-TR-CaK-Plage.jpg

2020-04-25-1339_3-TR-540nm-3x-Pore.jpg 2020-04-25-1347_5-TR-Ha-Plage.jpg 2020-04-25-1411_9-TR-CaK-Plage.jpg


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