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2020-12-18 21:30:45
HEVELIUS, Johannes [HORROCKS, Jeremiah]
Mercurius in sole visus Gedani, anno christiano MDCLXI. cui annexa est Venus in sole pariter visa, anno 1639. Liverpoliae, a Jeremia Horroxio, nunc primum edita . quibus accedit . Historiola, novae illius, ac mirae stellae in collo Ceti .
Simon Reiniger for the author, Danzig, 1662. PRESENTATION COPY INSCRIBED AND ANNOTATED BY HEVELIUS. First edition, very rare, presentation copy, inscribed by the author, and annotated by the author on 12 pages, including four longer annotations on the first engraving, that of a partial lunar eclipse. This work publishes Hevelius' observations of the transit of Mercury on 3 May 1661, followed by the first published description of the important observations by the short-lived English astronomer Jeremiah Horrocks (1618-1641) of the transit of Venus of 24 November 1639, with supplementary notes by Hevelius. Hevelius' observatory was considered the best in Europe (Dibner), and his naked-eye observations were then famed for their accuracy. Horrocks was the first astronomer to observe a transit (or conjunction with the sun) of Venus, an event that he had predicted through close study and correction of Kepler's tables. His observations enabled him to make the first accurate calculations of the diameter of Venus and of the constants of its orbit. This was the first of any of Horrocks's manuscripts to be published. The final portion of the work contains a description and ephemerides of a new star (probably a nova) in the 'neck' of the constellation Cetus, first observed in 1638, and a description of unusual optical occurrences observed by Hevelius in 1660 and 1661, including a paraselene (or mock moon), and a parhelion (or mock sun). The son of a wealthy Danzig brewer, Hevelius personally financed the lavish publication of his writings, hiring outstanding artists to produce the coppe … [Click Below for Full Description]
Bookseller: SOPHIA RARE BOOKS [Koebenhavn V, Denmark]
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