April 23, 2019 on 9:54 am | In Sun | Comments Off

Clear skies this morning with good seeing!  A spotless day but the proms are still visible at the NE limb.

2019-04-23-1323_3-TR-540nm.jpg 2019-04-23-1329_0-TR-Ha.jpg 2019-04-23-1326_2-TR-CaK.jpg


April 22, 2019 on 9:50 am | In Sun | Comments Off

Another day with clear skies and average seeing.  Whereas yesterday I could make out the faculae associated with AR2739, today the Sun was totally blank for spotless day 428 since solar max.  However, the proms that could be seen at the NW limb yesterday showed up higher today as it seems to be turning from the far side of the sun towards the visible hemisphere.

2019-04-22-1311_2-TR-540nm.jpg 2019-04-22-1319_1-TR-Ha.jpg 2019-04-22-1314_4-TR-CaK.jpg


April 21, 2019 on 11:04 am | In Sun | Comments Off

Clear skies after 3 days of clouds.  Seeing was below average and I had trouble focusing the full disk CaK run.  AR2739 is still visible but AR2738 has rotated to the far side of the Sun. A few small filaments can be seen in the Northern hemisphere and some nice prominences are visible at the NE limb.

2019-04-21-1324_6-TR-540nm-AR2739.jpg 2019-04-21-1340_4-TR-Ha-AR2739.jpg 2019-04-21-1331_5-TR-CaK-AR2739.jpg

2019-04-21-1327_9-TR-540nm-AR2739.jpg 2019-04-21-1343_6-TR-Ha-AR2739.jpg 2019-04-21-1334_6-TR-CaK-AR2739.jpg


April 17, 2019 on 1:01 pm | In Sun | Comments Off

Thin clouds covered the sky with below average seeing.  AR2738 is getting closer to the Western limb and the light bridge still persists.  In addition, a small new area seems to pop up.  Will have to see how it develops. Also, we have some nice proms at the NE limb.  Today closeups as well as full disk images.

2019-04-17-1256_4-TR-540nm-AR2738-pr.jpg 2019-04-17-1309_7-TR-Ha-AR2738-Pore.jpg 2019-04-17-1302_8-TR-CaK-AR2738-pr.jpg

2019-04-17-1258_8-TR-540nm-AR2738.jpg 2019-04-17-1312_5-TR-Ha-AR2738.jpg 2019-04-17-1305_4-TR-CaK-AR2738.jpg

2019-04-17-1315_8-TR-Ha-NEProms.jpg 2019-04-17-1313_9-TR-Ha-NewPore.jpg

April 16, 2019 on 2:15 pm | In Sun | Comments Off

Clear skies with good seeing for a change.  AR2738 keeps tracking across the Sun towards the western limb.  It’s size has been bobbling between 250 and 300 millionths.  The light bridge still persists, and for the rest AR2738 remains stable. Full disk images today as well as close ups in the three wavelengths.

2019-04-16-1341_8-TR-540nm-AR2738.jpg 2019-04-16-1359_1-TR-Ha-AR2738.jpg 2019-04-16-1351_5-TR-CaK-AR2738.jpg

2019-04-16-1344_9-TR-540nm-AR2738.jpg 2019-04-16-1401_5-TR-Ha-AR2738.jpg 2019-04-16-1354_2-TR-CaK-AR2738.jpg

April 15, 2019 on 12:09 pm | In Sun | Comments Off

Clear skies after yesterday’s storms.  Seeing was bad because of the sidewall of the Jetstream with wind shears between the Sun and my scopes causing high scintillation.  AR2738’s trailing spots have decayed but the leading spot is still well formed and the light bridge can still be seen.  The area covers 250 millionths and one spot.  Full disk images today and close ups of the region in the three wavelengths.

2019-04-15-1430_0-TR-540nm-AR2738.jpg 2019-04-15-1448_3-TR-Ha-AR2738.jpg 2019-04-15-1438_9-TR-CaK-AR2738.jpg

2019-04-15-1433_1-TR-540nm-AR2738.jpg 2019-04-15-1451_4-TR-Ha-AR2738.jpg 2019-04-15-1442_4-TR-CaK-AR2738.jpg

April 11, 2019 on 1:37 pm | In Sun | Comments Off

Skies cleared a bit later today.  AR2738’s trailing area seems to decay somewhat, but the leading spot does not seem to be very active.  No flares yet today.  The nice proms from yesterday have pretty much disappeared except for the NW limb. Full disk images today and close ups of the region in the three wavelengths.

2019-04-11-1625_0-TR-540nm-AR2738.jpg 2019-04-11-1640_5-TR-Ha-AR2738.jpg 2019-04-11-1631_6-TR-CaK-AR2738.jpg

2019-04-11-1627_4-TR-540nm-AR2738.jpg 2019-04-11-1644_6-TR-Ha-AR2738.jpg 2019-04-11-1635_2-TR-CaK-AR2738.jpg

April 10, 2019 on 1:05 pm | In Sun | Comments Off

Clear Skies today!!! Seeing was great. AR2738 has increased to 300 millionths again and is a Cho area. It produced a B1.2 flare around 200 UT and a B2.0 around 500. I am glad that the seeing seems to be getting better with the jetstream shifting more North. Today Full disk images with the Ha showing the number of filaments around the disk and close ups of the active region.

2019-04-10-1445_7-TR-540nm-AR2738.jpg 2019-04-10-1500_3-TR-Ha-AR2738.jpg 2019-04-10-1451_8-TR-CaK-AR2738.jpg

2019-04-10-1448_4-TR-540nm-AR2738.jpg 2019-04-10-1503_5-TR-Ha-AR2738.jpg 2019-04-10-1454_8-TR-CaK-AR2738.jpg

April 7, 2019 on 8:17 pm | In Sun | Comments Off

Cloudy today and expecting rain storms.  So here some interesting images.  You are thinking that spotless days at the Sun are boring?  Think again!!!  Here three composites of images which have been submitted to the ALPO archive in the last week or so which show evidence of (a little?) Cycle 25 activity.  Since the polarization of the Sun switches with every cycle, we have been looking for reverse polarized areas on the Sun for a while, and although very small, we have seen a good number of them.  So here three composites showing this activity on images of our observers.  Since the areas are very small and not even qualify to be called a pore or a plage, they have been cropped out of the full disk images you can find in our Archive.  The images to the right of them in the composite have been provided by SDO (Solar Dynamic Observatory) and show the polarization of these reversed polarized areas. (Northern hemisphere leading (right) white, positive polarization; Southern hemisphere leading (right) black, negative)

April 7, 2019 on 7:38 pm | In Sun | Comments Off

Had to image through moving clouds this morning which messed up my CaK images.  We have a new active region AR2738 which just came around the eastern limb.  In addition the remnants of AR2737 are still visible.  Today full disk images and close up in Ha and 540nm of AR2738.

2019-04-07-1628_8-TR-540nm-AR2738.jpg 2019-04-07-1647_5-TR-Ha-AR2738.jpg 2019-04-07-1640_1-TR-CaK-AR2738.jpg

2019-04-07-1632_2-TR-540nm-AR2738.jpg 2019-04-07-1650_3-TR-Ha-AR2738.jpg 2019-04-07-1649_6-TR-Ha-plage.jpg

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