1622, Jan 281640s-1660s1691, May 23
a French astronomer. Auzout made contributions in telescope observations, including perfecting the use of the micrometer. He made many observations with large aerial telescopes and he is noted for briefly considering the construction of a huge aerial telescope 1,000 feet in length that he would use to observe animals on the Moon.
Adrien Auzout1622, Jan 281640
16691691, May 23

Bonaventura Cavalieri15981632
16471647, Nov 30
 an Italian mathematician and a Jesuat. He is known for his work on the problems of optics and mot...
Godefroy Wendelin1580, Jun 61599
16521667, Oct 24
 a Flemish astronomer. The crater Vendelinus on the Moon is named after him. Around 1630 he measur...
Pierre Gassendi1592, Jan 221617
16531655, Oct 24
 a French philosopher, priest, scientist, astronomer, and mathematician. While he held a church po...
Muhammad Salih Tahtawiunknown1659
 a Mughal metallurgist, astronomer, geometer and craftsman, was born and raised in Thatta, Sindh ...
Ismael Bullialdus1605, Sep 281632
16671694, Nov 25
 a famous astronomer and mathematician during the seventeenth century. He published several books,...
Giovanni Battista Riccioli1598, Apr 171628
16711671, Jun 25
 an Italian astronomer and a Catholic priest in the Jesuit order. He is known, among other things,...
Johannes Hevelius1611, Jan 281630
16831687, Jan 28
 an astronomer he gained a reputation as "the founder of lunar topography" and described ten new c...
Giovanni Cassini1625, Jun 81648
16831712, Sep 14
 an Italian mathematician, astronomer, astrologer and engineer, born in Perinaldo, known for his w...
Christiaan Huygens1629, Apr 141649
16931695, Jul 8
 a prominent Dutch mathematician, scientist, astronomer, physicist, probabilist and horologist. Hi...
Ole Christensen Romer1644, Sep 251662
17101710, Sep 19
 a Danish astronomer who in 1676 made the first quantitative measurements of the speed of light. I...
John Flamsteed1646, Aug 191662
17191719, Dec 31
 an English astronomer and the first Astronomer Royal. His main achievements were the preparation ...
Isaac Newton1642, Dec 251665
17261726, Mar 20
 an English physicist and mathematician (described in his own day as a "natural philosopher") who ...
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