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Ioannis Bayeri Rhainani I.C. Uranometria [cartographic material] : omnium asterismorum continens schemata, nova methodo delineata, aereis laminis expressa
Bib ID 4492868
Format MapMap, OnlineOnline
Bayer, Johann, 1572-1625
Uniform Title Uranometria
Online Versions
Description Augustae Vindelicorum : Excudit Christophorus Mangus, 1603 
1 atlas ([8] p., 51 folded leaves of plates) : ill., 51 maps ; 37 cm. (fol.) 

This first edition of Johann Bayer's atlas includes 48 maps of individual Ptolemaic constellations; the 49th displays twelve newly observed southern constellations derived from expeditions into the southern hemisphere, including that of Vespucci, Corsali, Keyser and Houtman. The atlas is the first printed to show the southern hemisphere constellations. Maps 50 and 51 are celestial planispheres, entitled "Synopsis coeli superioris borea" and "Synopsis coeli inferioris austrina" respectively. Discussion of the various names of constellations, and a list of stars including Ptolemaic number, Bayer's letter, position within constellation figure, magnitude and astrological association is printed on the back of each map. Bayer's atlas includes many innovations such as his revolutionary classification system and the use of a grid for accurately determining the position of each star to fractions of a degree. The basis for this atlas was the catalog of 1,005 stars recorded by Tycho Brahe, although Bayer revised some of the magnitudes and added an additional 1,000 stars.


Fully engraved t.p. ; head pieces, tail pieces and initials.

Engravings by Alexander Mair. Cf. colophon.

Names in Latin and in Greek.

The main work is preceded by three laudatory poems about the author, one in Greek, two in Latin.

"Corrigenda": leaf b2, verso.

Signatures: a-b2, A-3C2.

Imprint from colophon.

Also available online

In Latin and Greek.

Library's copy includes preliminary manuscript index page, a double-page plate of Ursus Minor loosely inserted, a double-page dedication plate "To the University of Oxford" with a bifolium of accompanying text and six pages of manuscript astronomical notes by the mathematician John Collins (1625-1683), also loosely inserted.

Library's copy includes bookplate on verso cover and has signature 2R after 2V.

Cited In

D. Warner. The sky explored. p. 18.

Dict. Scien. Biogr. v. 1, p. 530.

Subjects Astronomy -- Maps -- Early works to 1800.  |  Stars -- Atlases -- Early work to 1800.  |  Constellations -- Maps -- Early works to 1800.
Other authors/contributors Mair, Alexander, approximately 1559  |  Mang, Christoph, approximately 1567-1617
Also Titled

Bayeri Uranometria


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