e/Nuclear time scale

Information
has gloss	eng: In astrophysics, the nuclear time scale is an estimate of the lifetime of a star based solely on its rate of fuel consumption. Along with the thermal and dynamical time scales, it is used to estimate the length of time a particular star will remain in a certain phase of its life and its lifespan if hypothetical conditions are met. In reality, the lifespan of a star is greater than what is estimated by the nuclear time scale because as one fuel becomes scarce, another will generally take its place--hydrogen burning gives way to helium burning, which is replaced by C+ radioactive decay.
lexicalization	eng: nuclear time scale
lexicalization	eng: Nuclear timescale
instance of	c/Time scales