![[SCHEINER, Christoph (1573-1650)]. De maculis solarib[us]. Et stellis circa Iovem errantibus, accuratior disquisitio, ad Marcum Velserum … perscripta. Augsburg: ad insigne pinus, 1612.](https://www.christies.com/img/LotImages/2017/CKS/2017_CKS_14298_0318_000(scheiner_christoph_de_maculis_solaribus_et_stellis_circa_iovem_erranti050801).jpg?w=1)
細節
[SCHEINER, Christoph (1573-1650)]. De maculis solarib[us]. Et stellis circa Iovem errantibus, accuratior disquisitio, ad Marcum Velserum … perscripta. Augsburg: ad insigne pinus, 1612.
4º (190 x 135mm). Woodcut device of a pine on title, 12 engraved illustrations, one full-page. Modern wrappers. Provenance: contemporary marginalia (some notes saved from cropping by being folded over, B3-4 with uncut foremargin preserving notes) -- erased inscription at foot of title.
THE DISCOVERY OF SUNSPOTS. Scheiner became professor of Hebrew and mathematics at Ingolstadt in 1610. After constructing a telescope, he detected spots on the sun in March 1611 which he believed to be planets. As a Jesuit, he was unable to publish his findings himself, so he communicated the discovery to his friend Marc Welser in Augsburg. In 1612 Welser had Scheiner’s letters printed in two series, one under the title Tres epistolae de maculis solaribus (see lot 320), the other the present work which discusses ‘the individual motion of the spots, their period of revolution, and the appearance of brighter patches or faculae on the surface of the sun. Having observed the lower conjunction of Venus with the sun, Scheiner concluded that Venus and Mercury revolve round the sun’. Although Galileo accused Scheiner of plagiarism (see DSB XII, p.151), the telescopic evidence which they had in fact discovered independently made both astronomers equally convinced of the truth of Copernicanism. Their differences in interpretation were far less important than their shared conclusion. Wesler, who had ensured Galileo knew of Scheiner's discoveries, was one of the founders of the private press known by its device 'At the sign of the Pine-Tree', active in Augsburg from 1594 to 1619. VD17 locates copies of this second series only at Munich, Bayerische Staatsbibliothek and Wolfenbuttel, Herzog-August-Bibliothek. BL/STC 17th-century German Books S593; Carli and Favaro 54; Cinti 40; Gingerich, Rara Astronomica 31; not in Honeyman or Norman.
4º (190 x 135mm). Woodcut device of a pine on title, 12 engraved illustrations, one full-page. Modern wrappers. Provenance: contemporary marginalia (some notes saved from cropping by being folded over, B3-4 with uncut foremargin preserving notes) -- erased inscription at foot of title.
THE DISCOVERY OF SUNSPOTS. Scheiner became professor of Hebrew and mathematics at Ingolstadt in 1610. After constructing a telescope, he detected spots on the sun in March 1611 which he believed to be planets. As a Jesuit, he was unable to publish his findings himself, so he communicated the discovery to his friend Marc Welser in Augsburg. In 1612 Welser had Scheiner’s letters printed in two series, one under the title Tres epistolae de maculis solaribus (see lot 320), the other the present work which discusses ‘the individual motion of the spots, their period of revolution, and the appearance of brighter patches or faculae on the surface of the sun. Having observed the lower conjunction of Venus with the sun, Scheiner concluded that Venus and Mercury revolve round the sun’. Although Galileo accused Scheiner of plagiarism (see DSB XII, p.151), the telescopic evidence which they had in fact discovered independently made both astronomers equally convinced of the truth of Copernicanism. Their differences in interpretation were far less important than their shared conclusion. Wesler, who had ensured Galileo knew of Scheiner's discoveries, was one of the founders of the private press known by its device 'At the sign of the Pine-Tree', active in Augsburg from 1594 to 1619. VD17 locates copies of this second series only at Munich, Bayerische Staatsbibliothek and Wolfenbuttel, Herzog-August-Bibliothek. BL/STC 17th-century German Books S593; Carli and Favaro 54; Cinti 40; Gingerich, Rara Astronomica 31; not in Honeyman or Norman.
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Robert Tyrwhitt