4 stories mention Thomas Harriot on DeadlyCurious.
Christoph Scheiner's *Rosa Ursina sive Sol* (1626–1630) ran to about 780 folio pages, contained the most accurate pre-19th-century star catalogue of the Sun's surface, and devoted hundreds of pages to attacking Galileo's claim to have discovered sunspots first. The priority dispute substantially poisoned the European astronomical mainstream for two decades.
Read the story →Thomas Harriot observed the Moon through a telescope in July 1609, sunspots in late 1610, and the moons of Jupiter probably in early 1610. Each of these observations was made independently of Galileo, in some cases earlier. Harriot published nothing. He died in 1621 with about 5,000 pages of unpublished astronomical manuscripts.
Read the story →Thomas Harriot observed sunspots in December 1610 — months before Galileo's published priority claim — telescopically observed the Moon weeks before Galileo's *Sidereus Nuncius*, and worked out the law of refraction twenty years before Snell. He published almost none of it. He died in 1621 of nasal cancer leaving over 8,000 pages of unpublished manuscripts.
Read the story →In 1610 four astronomers in four countries pointed early telescopes at the Sun and saw spots. They spent the next decade arguing about who had seen them first.
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