Geocentric model coelestium" ("On the Revolutions of the Heavenly Spheres"), which posited that the Earth and the other planets instead revolved around the Sun. The geocentric system was still held for many years afterwards, as at the time the Copernican system did not offer better predictions than the geocentric system, and it posed problems for both natural philosophy and scripture. The Copernican system was no more accurate than Ptolemy's system, because it still used circular orbits. This was not altered until Johannes Kepler postulated that they were elliptical (Kepler's first law of planetary motion). With the invention of the telescope in 1609,
Populated places in Ukraine localities can refer to two different types of inhabited places: villages and rural settlements. Rural populated places in Ukraine are very underdeveloped and often lack basic types of infrastructure: transportation, utilities and others. Village as a term became systematic for a conventional rural populated place and most numerous out of all terms used for populated places in a country. It is administrated by silrada (a rural council) and is the lowest level and most common form of territorial administration at that level. A rural council may be composed of a single village or group of villages. According to the 2001