Rudolphine Tables and instructive examples for computing planetary positions. For most stars these tables were accurate to within one arc minute, and included corrective factors for atmospheric refraction. The tables were sufficiently accurate to predict a transit of Mercury observed by Pierre Gassendi in 1631 and a transit of Venus observed by Jeremiah Horrox in 1639. Rudolphine Tables The Rudolphine Tables () consist of a star catalogue and planetary tables published by Johannes Kepler in 1627, using some observational data collected by Tycho Brahe (1546–1601). The tables are named as "Rudolphine" in memory of Rudolf II, Holy Roman Emperor. Star tables had
Siege of Rheinberg (1601) Siege of Rheinberg (1601) The Siege of Rheinberg also known as the Rhine campaign of 1601 was the siege of the towns of Rheinberg (Old Dutch: Rijnberk) and Meurs from 12 June to 2 August 1601 during the Eighty Years' War and the Anglo–Spanish War. Maurice of Orange with an Anglo-Dutch army besieged the Spanish held cities in part to distract them before their impending siege at Ostend. Rheinberg, an important city, eventually capitulated on 28 July after a Spanish relief force under Herman van den Bergh failed to relieve the city. The towns of Meurs surrendered soon after. In