The meaning of SUPERGIANT is something that is extremely large; especially : a star of very great intrinsic luminosity and enormous size.
Supergiants are rare and short-lived stars, but their high luminosity means that there are many naked-eye examples, including some of the brightest stars in the sky. Rigel, the brightest star in the constellation Orion is a typical blue-white supergiant; Deneb is the brightest star in Cygnus...
Related to red supergiant:red giant,black hole n. A massive star of great size and luminosity that has a relatively low surface temperature ranging from 3,000 to 4,000 kelvin (4,940° to 5,740° F), giving it a reddish or orange hue. ...
Supergiant stars are some of the largest type of star and they give off a huge amount of energy. A supergiant can be 100 times larger than our sun! It requires an enormous amount of energy to reach this size, and so supergiant stars do not last as long as other types of stars, and...
For RSGs, the heavy lifting has already been done by the stellar interior, as a significant fraction of the luminosity of the star has gone into making a bigger radius. “It is kind of like walking with a nearly full glass of water vs a glass that is only 1% full (O star)–even a...
(CO) molecules indicate a similar rate of mass loss and demonstrate that the escaping material extends outward from the star for a distance of at least one light-year. Because we know the size of the cloud around IRC+10216 and can use our observations of either NH3 or CO to measure the...
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. Larger stars are more luminous at a given temperature and can now ...
The limited characterization of the clump physical properties (mass, size) obtained so far have led to large uncertainties in the mass loss rates from massive stars. Such uncertainties limit our understanding of the role of massive star winds in galactic and cosmic evolution. Supergiant high mass ...
1), where three different locii were originally recognized (Corbet, 1986): Be-star binaries (where spin periods are correlated with orbital periods), supergiant systems with long spin periods (∼100–1000 s; wind-fed HMXBs) and narrow orbits (Porb ∼ 10 days) and supergiant systems ...
Betelgeuse is an enormous star. If we were to place it at the center of oursolar system, it would extend all the way toJupiter. The star's size, combined with its position in our galaxy, theMilky Way, allows astronomers to study Betelgeuse in better detail than most stars. ...