Geocentric Coordinate Time system. When the Earth is at perihelion in January, TCG ticks even more slowly than it does on average, due to gravitational time dilation from being deeper in the Sun's gravity well and also velocity time dilation from moving faster relative to the Sun. At aphelion in July the opposite holds, with TCG ticking faster than it does on average. Geocentric Coordinate Time Geocentric Coordinate Time (TCG - Temps-coordonnée géocentrique) is a coordinate time standard intended to be used as the independent variable of time for all calculations pertaining to precession, nutation, the Moon, and artificial satellites of the Earth.
Central Europe enlightened German humanistic culture of the 19th century. German-speaking Jews from turn of the 20th century Vienna, Budapest and Prague became representatives of what many consider to be Central European culture at its best, though the Nazi version of "Mitteleuropa" destroyed this kind of culture instead. However, the term "Mitteleuropa" is now widely used again in German education and media without negative meaning, especially since the end of communism. In fact, many people from the new states of Germany do not identify themselves as being part of Western Europe and therefore prefer the term "Mitteleuropa". Following World War II, large