Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
			1	2      367 years ago, in 1577: Peruvian observers are the first to view the Great Comet of 1577 (C/1577 V1).      27 years ago, in 1917: The 100-inch Hooker Telescope sees "first light".	3	4
5	6	7	8	9	10	11      372 years ago, in 1572: Tycho Brahe observes supernova SN 1572 in the constellation of Cassiopeia.      9 years ago, in 1935: Explorer II, a U.S. high-altitude balloon with a two-man crew, reaches a record altitude of 72,395 ft (22,066 m).
12      59 years ago, in 1885: 253 Mathilde, a minor planet in the intermediate asteroid belt, is discovered by Austrian astronomer Johann Palisa at the Vienna Observatory.	13      367 years ago, in 1577: Tycho Brahe observes the Great Comet of 1577 (C/1577 V1) in the evening sky.	14      264 years ago, in 1680: The German astronomer Gottfried Kirch discovers the Great Comet of 1680 (C/1680 V1, Kirch's Comet, Newton's Comet), the first comet discovered by a telescope.	15      92 years ago, in 1852: 21 Lutetia, a large asteroid in the main asteroid belt, is discovered by Hermann Goldschmidt from the balcony of his apartment in Paris.	16	17	18      111 years ago, in 1833: The annual Leonid showers peaks at approximately 14,000 meteors an hour; the night “the stars fell on Alabama”.
19	20	21      39 years ago, in 1905: The Annus mirabilis papers, Einstein's work on Mass–energy equivalence and other topics, are published in the Annalen der Physik scientific journal.	22	23	24	25
26      154 years ago, in 1790: William Herschel discovers NGC 13, a spiral galaxy in the Andromeda constellation.	27	28	29      201 years ago, in 1743: Jan de Munck of Middelburg, Netherlands, discovers the Great Comet of 1744 (C/1743 X1).	30