The red giant Sokor A star of giant proportions represented one classification of star. Characteristically, they created a lesser amount of heat when compared to smaller stars, and their external atmosphere could be traversed utilizing a sufficiently shielded scout vessel. Frequently, giant stars came into existence when the hydrogen fuel of the star had been depleted, inducing the star to enlarge, potentially engulfing inner planets inside a star system. Terrestrial planets were capable of being supported by systems containing giant stars. The most frequently encountered type of giant star was the red giant.
The size and luminosity of the star would fluctuate as it aged. Heavier elements would be generated as it continued to burn, until its fuel was completely used up. Following that point, it would implode, transforming into either a white dwarf or a neutron star. The possibility existed that the external layers could produce a supernova. In uncommon instances, the central core of the giant star could evolve into a black dwarf.