Red supergiants (RSGs) are stars with a supergiant luminosity class (Yerkes class I) of spectral type K or M. They are the largest stars in the universe in terms of volume, although they are not the most massive or luminous. Betelgeuse and Antares A are the brightest and best known red supergiants (RSGs), indeed the … See more Stars are classified as supergiants on the basis of their spectral luminosity class. This system uses certain diagnostic spectral lines to estimate the surface gravity of a star, hence determining its size relative to its mass. … See more Supergiant luminosity classes are easy to determine and apply to large numbers of stars, but they group several very different types of stars into a … See more Red supergiants develop from main-sequence stars with masses between about 8 M☉ and 30 or 40 M☉. Higher-mass stars never … See more Red supergiants are rare stars, but they are visible at great distance and are often variable so there are a number of well-known examples: • See more Red supergiants are cool and large. They have spectral types of K and M, hence surface temperatures below 4,100 K. They are typically several … See more Red supergiants are necessarily no more than about 25 million years old and such massive stars are expected to form only in relatively large clusters of stars, so they are expected to be … See more • List of supernovae See more WebSep 17, 2024 · One of the best known red giant stars is the old red star Betelgeuse. It’s also the nearest red supergiant star to Earth. This 2013 far-infrared image, from the Herschel space observatory ...

What Are Blue Supergiant Stars? - ThoughtCo

WebJan 7, 2024 · The star that exploded was a red supergiant that contained about 10 times the mass of the sun and was located about 120 million light-years from Earth in the NGC 5731 galaxy, according to the ... WebJun 1, 2024 · As a red supergiant nearing the final phases of its life cycle, Betelgeuse has an estimated diameter around a thousand times that of the Sun, with an estimated absolute luminosity of 100,000 times the Sun. We’re talking about an object larger than the entire orbit of Jupiter — an amazing fact to recall the next time you’re out observing this star. steinhatchee to gainesville

Supergiant - Wikipedia

WebSupergiants occur in every spectral class from young blue class O supergiants to highly evolved red class M supergiants. Because they are enlarged compared to main-sequence and giant stars of the same spectral type, they have lower surface gravities, and changes can be observed in their line profiles. WebAldebaran is a Red Giant star that is 44 times the radius of the Sun. Wikipedia. Red Supergiants. Red supergiant stars are stars that have exhausted their supply of hydrogen … A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses (M☉)) in a late phase of stellar evolution. The outer atmosphere is inflated and tenuous, making the radius large and the surface temperature around 5,000 K (4,700 °C; 8,500 °F) or lower. The appearance of the red giant is from yellow-white to reddish-orange, including the spectral types K and M, som… pinnacle sports performance \\u0026 rehabilitation