Measuring the Universe: Cosmic Dimensions from Aristarchus to Halley
Measuring the Universe is the first history of the evolution of cosmic dimensions, from the work of Eratosthenes and Aristarchus in the third century B.C. to the efforts of Edmond Halley (1656—1742).
"Van Helden's authoritative treatment is concise and informative; he refers to numerous sources of information, draws on the discoveries of modern scholarship, and presents the first book-length treatment of this exceedingly important branch of science."—Edward Harrison, American Journal of Physics
"Van Helden writes well, with a flair for clear explanation. I warmly recommend this book."—Colin A. Ronan, Journal of the British Astronomical Association
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9 Gassendi Hortensius and the Transit of Mercury of 1631
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absolute distances accuracy accurate al-Battani al-Battani’s al-Farghani Almagest ameter angular diameter apogee Aristarchus astronomers calculated Cassini Cayenne Copernican Copernicus Copernicus’s corrections cosmos determine diame earth radii Earth’s orbit eccentricity eclipse diagram epicycle Epitome equal error figure fixed stars Flamsteed Galileo Gassendi greatest distance Halley heavenly bodies heliocentric Hipparchus horizontal parallax horizontal solar parallax Horrocks Horrocks’s Hortensius Huygens Ibid instruments jKGW Jupiter Jupiter’s Kepler larger least distance lunar dichotomy lunar distance Maestlin’s magnitude Mars’s parallax mathematical mean distance Mercury Mercury’s method micrometer Moon’s apparent diameter nesting spheres Newton parallax of Mars perigee planetary diameters planetary distances Planetary Hypotheses planetary sizes predicted proportion Ptolemaic System Ptolemy Ptolemy’s radius ratio refraction Remus Riccioli right ascension Saturn scheme of sizes semidiameter sizes and distances solar distance solar parallax Sole Visa Sun’s Sun’s parallax tance TBOO theory tion traditional transit of Venus tronomers Tycho Brahe Venus in Sole