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The actual limit-point mass depends on how opaque the gas in the star is, and metal-rich Population I stars have lower mass limits than metal-poor Population II stars. Before their demise, the hypothetical metal-free Population III stars would have had the highest allowed mass, somewhere around 300 M ☉.
HD 140283 (also known as the Methuselah star) is a metal-poor subgiant star about 200 light years away from the Earth in the constellation Libra, near the boundary with Ophiuchus in the Milky Way Galaxy. Its apparent magnitude is 7.205, so it can be seen with binoculars. It is one of the oldest stars known.
Theoretical limit of star size (Large Magellanic Cloud) ≳1,550 [9] L/T eff: Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3,545 K. Reported for reference: HV 888 1,477 [105] –1,584 [106] Large Magellanic Cloud L/T eff: HD 269551 A 1,439 [107 ...
A 5 ⁄ 16 inch star (9.7mm) is a miniature gold or silver five-pointed star that is authorized by the United States Armed Forces as a ribbon device to denote subsequent awards for specific decorations of the Department of the Navy, Coast Guard, Public Health Service, and National Oceanic and Atmospheric Administration.
HE0107-5240 is an extremely metal-poor Population II star, located roughly 36 000 light-years away from Earth. It is one of the most metal-poor stars known in our Galaxy, with a metallicity [Fe/H] = −5.2 ± 0.2; [3] i.e. it has just 1 / 160 000 of the metal that the Sun has.
HE 1523-0901 is the designation given to a red giant star in the Milky Way galaxy approximately 9,900 light-years from Earth. It is thought to be a second generation, Population II, or metal-poor, star ([Fe/H] = −2.95). The star was found in the sample of bright metal-poor halo stars from the Hamburg/ESO Survey by Anna Frebel and