1526 ASTROLOGY ASTRONOMY TABULE Giovanni Bianchini POST-INCUNABULA antique RARE

Giovanni Bianchini (1410-c. 1469)

Tabule
Ioa. lanchini Bononiensis cum plerisqu additionibus ac novis tabellis nup impresse per L. Gauricu Neapolit, castigate Venetijs.

Venice: Lucantonio Giunta, 1526.

 title page printed in red and black with printer's device in red
(title stained and smudged with old marginal paper repairs on the sides);
contents otherwise very good;
bound in later half vellum with marbled boards, faded manuscript title to the spine

rare, RBH shows very few copies sold only in 2012 and 2021;

Size  8 1/2 x 6 1/4 in.

Bianchini is the first European mathematician to work out his trigonometry tables using positional fractions.
Al-Kashi, a Persian astronomer, was doing the same at about the same time, independently.
He is also credited as the first person to use the decimal point.
For more see Jo Marchant's article in the journal Nature, "The Decimal Point is 150 years older than historians thought," in the 19 February 2024 issue.

Ex libris Professor, Astronomer, Historian & Bibliophile Owen Gingerich.

Text in Latin
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Giovanni Bianchini (in Latin, Johannes Blanchinus) (1410 – c. 1469) was a professor of mathematics and astronomy at the University of Ferrara and court astrologer of Leonello d'Este.
He was an associate of Georg Purbach and Regiomontanus.
The letters exchanged with Regiomontanus in 1463–1464 mention works by Bianchini entitled:
Primum mobile (astronomical tables included), Flores almagesti, Compositio instrumenti.
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