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An account of the discoveries concerning comets, with the way to find their orbits, and some improvements in constructing and calculating their places. For which reason are here added new tables, fitted to those purposes; particularly with regard to ...

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Estimate: US$300 - US$500
Price realised:  US$390
Lot number 5, Views: 6

Title: An account of the discoveries concerning comets, with the way to find their orbits, and some improvements in constructing and calculating their places. For which reason are here added new tables, fitted to those purposes; particularly with regard to that Comet which is soon expected to return Author: Barker, Thomas Place: London Publisher: Printed for J Whiston and B. White Date: 1757 Description: [6], 52, [2] pp. Folding engraved plate. (4to) 22.5x17.5 cm (8¾x6¾"), modern boards, new endpapers. First Edition. The author's principal work, containing a catalogue of the elements of the comets then known, and an explanation of Newton's problem of finding a comet's orbit from three observations. The most valuable (and most original) part is the "Table of the Parabola," for ascertaining any orbits which are approximately parabolic. The work is quite scarce: only two copies have sold at auction since 1975, according to American Book Prices Current. Lot Amendments Condition: Soiling to boards; title-page fore-edge with a touch of wear, plate with slight loss along a fold; very good. Item number: 287915

Informations about the auction
Auction house: PBA Galleries
Title: Sale 630: The Richard E. Bateman Collection on Celestial Mechanics with Rare Books & Manuscripts from various consignors
Date of the auction: 30 Nov 2017
Address: PBA Galleries
1233 Sutter Street
94109 San Francisco, CA
United States
[email protected] · +1 (0)415 9892665 · +1 (0)415 9891664