TFX
Introduction
TFX is a large, Population I star in a distant galaxy, home to a planetary system, the TFX System. The star emits most of its energy in the form of infrared and visible light, with a peak at 440nm, and with approximately 16% in the ultraviolet; its luminosity places it into the F6V spectral class. It is the most important source of heat and light for Vosanus and its inhabitants and ecosystems. TFX produces a magnetic field via convection in its interior. The star and its system formed approximately 5.1Ga ago, wherein they underwent the proccess of proto-system formation and accretion due to gravitational collapse. The star has an approximate lifetime of 5.7-5.8Ga. TFX is of importance to many cultures and religions living on Vosanus, and is integrated into most calendars for the purposes of tracking seasonal changes.
TFX is composed of mainly hydrogen and helium - its metallicity is 0.0124, and so it is composed of approximately 1.24% oxygen, carbon and iron. The remaining 98.76% is hydrogen and helium. The star undergoes nuclear fusion in its core in order to prooduce heat and light. Through this proccess, TFX fuses 600-700 billion kilograms of matter every second, which also results in the creation of intense streams of charged particles called stellar winds.
In approximately 600 million years, the hydrogen fusion within the core of TFX will cease to keep the star in hydrostatic equilibrium, and it will begin to increase in temperature and density. This begins the process of stellar death, wherein the stars spectral class will change into that of a supergiant, as its outer layers begin to expand due to increased outward pressure. This will result in the definite extinction of all life on Vosanus, and will also destabalise the TFX System. The outer layers of the star will then shed, in a supernova event, and the remaining mass will become either a white dwarf or a black hole, as the denser material collapses in on itself.