Author: Wjkström [ Wijkstrom ], Andreas [ Anders ] & Klingenstierna, Samuele [ Samuel ]
Title: Methodus Geometrica Determinandi Orbitas Planetarum [ Planetarium ]
Description: Upsaliae [ Uppsala ], 1749, 1st edition. Disbound, VG. [vi]+28pp, quarto, woodcut headpieces & astronomical illustrations, a nice near fine copy, title just a little soiled. Disbound , no dustjacket. ¶ Uncommon mathematical paper on the geometric calculation of the orbits of planets. The paper was written by Wijkström under the guidance of Klingenstierna, with the opening paragraphs referencing Newton, Kepler & Brae. Samuel Klingenstierna [ 1698 - 1765 ] Swedish mathematician & astronomer who was made Professor at Uppsala in 1728. Apart from his contributions to the field of refraction ( noting errors in Newton's theories on the matter ) he was also involved in the invention of the achromatic telescope. Anders Wijkström [ 1726 - 1763 ] mathematician & astronomer who wrote a second similar paper in 1752. HL11951.

Keywords: astronomy, mathematics, geometry, planets,