september 19, 1811 (thurs.)

An annular solar eclipse was visible at Monticello a couple of days ago, on Tuesday, the 17th, the annulus (the bright ring of the sun around visible behind the moon) showing from 1:53 to about half minute past 1:59 in the afternoon, by Mr. Jefferson's slightly slow clock. Of course Mr. Jefferson went out to see it and of course he observed it carefully and took meticulous notes.