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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 3545 K. Reported for reference: HV 888 1,477 [102] –1,584 [103] Large Magellanic Cloud L/T eff: HD 269551 A 1,439 [104 ...
Some stars may once have been more massive than they are today. It is likely that many large stars have suffered significant mass loss (perhaps as much as several tens of solar masses). This mass may have been expelled by superwinds: high velocity winds that are driven by the hot photosphere into interstellar space. The process forms an ...
A giant star has a substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature. [1] They lie above the main sequence (luminosity class V in the Yerkes spectral classification) on the Hertzsprung–Russell diagram and correspond to luminosity classes II and III. [2]
This is a large star with 2.8 times the mass of the Sun and 4.3 times the Sun's radius. [6] The spectrum matches a stellar classification of A2 V, [3] making this a seemingly typical A-type main sequence star. However, the spectrum shows enhanced absorption lines of metals, marking this as a chemically peculiar Am star. [11]
S Doradus (also known as S Dor) is one of the brightest stars in the Large Magellanic Cloud (LMC), a satellite galaxy of the Milky Way, located roughly 160,000 light-years away. The star is a luminous blue variable , and one of the most luminous stars known , having a luminosity varying widely above and below 1,000,000 times the luminosity of ...
The primary component, Theta Aurigae A, is a large star with more than three times the mass of the Sun and nearly five times the Sun's radius. It is radiating 214 times the Sun's luminosity from its outer atmosphere at an effective temperature of 10,220 K, giving it the white hue of an A-type star.
This is a binary star system with an orbital period of 84.1 days. [ 14 ] [ 15 ] The primary component is a B1 giant or subgiant star. [ 3 ] This is a large star with nearly eleven [ 8 ] times the mass and over six times the radius of the Sun. [ 9 ] Pi Aquarii shines about 7,300 [ 10 ] times as brightly as the Sun.
Sigma Arietis is a B-type main sequence star with a stellar classification of B7 V. [3] This is a large star with three [7] times the radius of the Sun and 3.8 [6] times the Sun's mass.
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