Description
2 parts in 1 volume.
(Neapoli, Johannes Sultzbach ; 1531)
Size 5 3/4 by 8"
77 lvs
Vellum bound
Extremely rare first edition of the only separate publication by the Florentine astrologer and astronomer F. Sirigatti
- Work on the movement of the planets based on the Ptolemaic system.
The first book describes the planetary movements according to the months,
the second book deals with astronomical problems and the signs of the zodiac.
Sirigatti translated the "Liber astronomiae" by Guido Bonatti and Lugio Bellantis' "Tractatus astronomiae" and dedicated his work to the Medici Pope Leo
Traces of worms, the layers H-I (16 sheets) in the lower margin slightly shorter, as is often the case without 4 sheets (preface, frontispiece, dedication sheet and epigram) at the beginning , partly more browned in places, otherwise in good condition.
Text in Latin
Sirigatto, a Florentine working before 1550, initially published this work in Naples in 1531 ("Fort rare" Huzeau & Lancaster).
Using the Ptolemaic system of celestial motion, Sirigatto here lays out his own observations of the appearance and the various movements of the constellations throughout the year. The work is divided into two 'books', the first dealing with a day-by-day annual account of the appearance of the constellations, the second describing their movements in 'rising' and 'setting' ('ortu' and 'occasu'), this data theoretically permitting the contemporary scientist to predict the motion of the stars.
Reserve: $1,700.00
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1531 ASTROLOGY & ASTRONOMY TREATISE Sirigatti antique De ortu et occasu signorum
Estimate $2,000-$2,500
Starting Price
$850
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Antique books 15th-19th Century
Feb 05, 2026 6:00 PM ESTNew York, NY, United States
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