Article ID: CBB165601764

The Starry Universe of Jacques Cassini: Century-old Echoes of Kepler (2021)

unapi

This paper discusses measurements of the apparent diameter and parallax of the star Sirius, made in the early 18th century by Jacques Cassini, and how those measurements were discussed by other writers. Of particular interest is how other writers accepted Cassini’s measurements, but then discussed Sirius and other stars as though they were all the same size as the sun. Cassini’s measurements, by contrast, required Sirius and other stars to dwarf the sun—something Cassini explicitly noted, and something that echoed the ideas of Johannes Kepler more than a century earlier.

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https://data.isiscb.org/isis/citation/CBB165601764/

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Authors & Contributors
Sheehan, William
Usher, Peter D.
Francisco Diego
Enrico Massaro
Benetti, Stefano
Bònoli, Fabrizio
Journals
Mediterranean Archaeology and Archaeometry
Journal for the History of Astronomy
Journal of Astronomical History and Heritage
Journal of Physics: Conference Series
Centaurus: International Magazine of the History of Mathematics, Science, and Technology
Galilæana: Journal of Galilean Studies
Publishers
Astronomical Society of the Pacific
Oxford University
Olschki
Edizioni Tassinari
Concepts
Stars; stellar astronomy
Sun
Parallax (astronomy)
Astronomy
Celestial mechanics
Measurement
People
Digges, Thomas
Brahe, Tycho
Galilei, Galileo
Kepler, Johannes
Amici, Giovanni Battista
Bruno, Giordano
Time Periods
16th century
18th century
19th century
17th century
20th century
20th century, early
Places
Babylon (extinct city)
Europe
Mesopotamia
Italy
Spain
Macedonia
Institutions
Università di Bologna
Lowell Observatory
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