Thomas Harriot’s Observations of Halley’s Comet in 1607

  • John J. Roche
Part of the International Archives of the History of Ideas book series (ARCH, volume 110)


Thomas Harriot (1560–1621) has left a record of the observations and calculations he made on Halley’s comet of 1607 and on the Brilliant comet of 1618.1 The 1607 papers contain a record of the observations, a log of seeing conditions and some preliminary calculations, while the 1618 papers are much more extensive. These contain the last recorded series of astronomical observations by Harriot.


Sixteenth Century Fifteenth Century Reference Star Nearby Star Cometary Orbit 
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Copyright information

© Martinus Nijhoff Publishers, Dordrecht 1985

Authors and Affiliations

  • John J. Roche

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