what significance does it has?
Because HD 140283 is neither on the main sequence nor a red giant, its early position in the Hertzsprung-Russell diagram has been interpreted with its data and theoretical models of stellar evolution based on quantum mechanics and the observations of processes in millions of stars to infer its apparent old age.
HD 140283
Because HD 140283 is neither on the main sequence nor a red giant, its early position in the Hertzsprung-Russell diagram has been interpreted with its data and theoretical models of stellar evolution based on quantum mechanics and the observations of processes in millions of stars to infer its apparent old age.
where does the gas and dust to form stars originate from "molecular clouds" what is this quoted term means? A molecular cloud, sometimes called a stellar nursery, is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen where this type of clouds are formed? In the space between the star systems in a galaxy what are its types? Giant molecular clouds and Small molecular clouds what are the characteristics of the above object which is formed from dust and gas? Luminosity, size, evolution, lifespan what can you tell about its age? Most stars are between 1 billion and 10 billion years old. Some stars may even be close to 13.8 billion years old—the observed age of the universe. The oldest star yet discovered, HD 140283, nicknamed Methuselah star, is an estimated 14.46 ± 0.8 billion years old. what are the chemical composition of this type of object? 71% hydrogen and 27% helium how far is the oldest object you just mentioned above is from earth? 200 light years when was it discovered? UNANSWERABLE
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HD 140283 [SEP] Age and significance
A second generation of stars, the generation in which HD 140283 is theorized to have been born, could not have coalesced until gas, heated from the supernova explosions of the earlier stars, cooled down. This hypothesis of such stars' birth and our best models of the early universe indicate that the time it took for the gases to cool was likely only a few tens of millions of years.