I made an observation of the Sun this morning, and while the atmospheric stability was only fair, it was wonderful to be sitting at the scope under my towel without a continuous stream of sweat pouring off my body. I had forgotten what 80 degrees feels like! The sketch below was completed at 8:44 AM MST (1544 UT) with my Lunt Solar Systems 60mm Hydrogen Alpha telescope. To the right is an image from Big Bear Solar Observatory captured 5 minutes after my sketch at 1549 UT.
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There are four numbered active regions visible (to me) on the face, as well as what appears to be a developing region near the east limb on the equator. The most impressive region is 11289 which sports some very large and dark spots, as well as a long snaking region of plage trailing to the east. Consider that it would take about 110 Earths lined up to cross the diameter of the Sun, and you can see that these spots are larger than our own planet!
Departing region 11283 on the west limb was also showing some bright plage this morning as well as a few associated prominences. This region was difficult to observe due to the atmospheric turbulence making the solar limb appear as if it were under water. Both regions 11287 and 11290 appear weak, although my lack of observations this past week leave me unable to determine if these regions are decaying. 11287 does appear to have a spot.
Perfect sketch Alan! Love it! :-)
ReplyDeleteThanks Mark- lots to see today and a beautiful morning as well.
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