Age estimate for HD 140283 is 14.46+-0.80 Gyr. On the y-axis is the star's pseudo-luminosity, on the x-axis its temperature. An evolutionary track was applied to infer the age (credit: adapted by D. Majaess from Fig 1 in Bond et al. 2013, arXiv).
TTGL in real life (Red rectangle nebula, x-post from /r/space)
Oldest star in solar neighbourhood - HD 140283 - Wikipedia, the free encyclopedia Constellations, Cosmos, Cyberpunk, Cosmic Microwave Background, How The Universe Works, Gravitational Waves, Neutron Star, Planetary Science, Theoretical Physics
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