It must be difficult for meteorologists to accurately predict cloud cover. Over many years of astronomical observing I've found their forecasts unreliable. May 25th was a perfect example. Instead of predicted clear skies, lots of clouds were present. Fortunately, there were enough gaps between clouds to allow some solar imaging. A strong breeze blew from time to time, but periods of good seeing did exist as clouds drifted by. It took nearly two hours to align my telescope mount because recent driveway paving had covered the accurate placement marks I had previously made for the tripod legs.
Two medium-sized sunspots were on display. Sunspot 1755, accompanied by dark, wavy filaments, appears above sunspot 1756 in the 6-image mosaic below. Tiny sunspot 1757 had just emerged from around the Sun's eastern limb on the left. This image was made with my new 1.5X Barlow lens.
(Click for full detail.) |
The next image, is a larger view of sunspot 1755 and its accompanying filaments. This is a 3-image mosaic made with a 2X Barlow lens.
(Click for full detail.) |
Finally, here is an enlarged view of sunspot 1756 made with a 2X Barlow lens.
(Click for full detail.) |