"[Lot of 2] Globi Coelestis in Tabulas Planas Redacti Pars I [and] Globi Coelestis in Tabulas Planas Redacti Pars III", Doppelmayr/Homann
Period: 1742 (circa)
Color: Hand Color
23 x 19 inches
58.4 x 48.3 cm
A nice pair of star charts, both with descriptive Latin text at sides. Johann Dopplemayer was a professor of mathematics in Nurembeg. Johannn Baptist Homann was a former monk who became a map engraver and engraved Doppelmayr's celestial maps and included them in the Atlas Coelestis… that was published in 1742.
1) Globi Coelestis in Tabulas Planas Redacti Pars I is a celestial chart centered on the north equatorial pole up to 45° North declination, drawn on a gnomic projection. It is filled with constellations including Persius, Cassiopea, Cepheus, Draco, and Ursa Major, commonly called the Big Dipper. This beautiful sky chart also depicts the paths of the comets of 1618 and 1683 with the dates and names of observers. Stars of magnitude 1 to 6 are indicated by icons of decreasing size. Panels of Latin text at sides list approximately 400 stars organized by their constellation, and giving latitude and longitude for each.
2) Globi Coelestis in Tabulas Planas Redacti Pars III is centered on the Equator below the summer solstice in a gnomic projection between the declinations 45° North and 45° South. Also depicted are the paths of several comets with the dates and names of observers. It includes the major constellations of Cancer, Gemini, Orion and Taurus.
References: Kanas pp. 209-11; Warner p. 66 - 1E and 1G.
Both charts have original color and toned centerfolds with some stains. Map 1 has trimmed lower margin, with some of the neatline missing and some tears in the margin that have been closed with old paper repairs on the verso. Map 2 has some small worming and abrasion in the lower part of the map, with some paper repairs on the verso.