- Between 30,000 and 50,000 solar massesThe cluster has an estimated mass between 30,000 and 50,000 solar masses and a physical radius of about 4 parsecs (13 light-years).Apparent magnitude (G): 15.2631 ± 0.0092Apparent magnitude (H): 4.698Apparent magnitude (J): 7.150Spectral class: M6www.star-facts.com/stephenson-2-18/
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前往 Wikipedia 查看全部内容Hypergiant - Wikipedia
A hypergiant (luminosity class 0 or Ia ) is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds. The term hypergiant is defined as luminosity class 0 (zero) in the MKK system. However, this is rarely seen in literature or in published spectral classifications, … 展开
As the luminosity of stars increases greatly with mass, the luminosity of hypergiants often lies very close to the Eddington limit, which is the luminosity at … 展开
Hypergiants are difficult to study due to their rarity. Many hypergiants have highly variable spectra, but they are grouped here into broad spectral classes.
Luminous blue variables
Some luminous blue variables are classified as … 展开Stars with an initial mass above about 25 M☉ quickly move away from the main sequence and increase somewhat in luminosity to become blue … 展开
Hypergiants are evolved, high luminosity, high-mass stars that occur in the same or similar regions of the Hertzsprung–Russell diagram as some stars with different classifications. It is not … 展开
CC-BY-SA 许可证中的维基百科文本 VY Canis Majoris - Wikipedia
VY Canis Majoris (abbreviated to VY CMa) is an extreme oxygen-rich red hypergiant or red supergiant (O-rich RHG or RSG) and pulsating variable star 1.2 kiloparsecs (3,900 light-years) from the Solar System in the slightly southern constellation of Canis Major. It is one of the largest known stars, one of the most luminous and massive red supergiants, and one of the most luminous stars in the
Wikipedia · CC-BY-SA 许可下的文字12 Largest Stars in the Universe - Rarest.org
2024年11月11日 · VY Canis Majoris is one of the largest stars ever measured, sitting around 1,500 times the size of the Sun in radius. It’s a red hypergiant located in the constellation …
Stephenson 2-18 (St2-18): Largest Star Known - Star Facts
在star-facts.com上查看更多信息Stephenson 2-18 is a red supergiant star of the spectral type M6. It is one of the largest starsever discovered, with a radius of 2,150 solar radii. It is also one of the most luminous stars in the Milky Way and one of the most luminous red supergiants known. With an effective temperature of 3,200 K, St2-18 shines with …- Apparent magnitude (G): 15.2631 ± 0.0092
- Apparent magnitude (J): 7.150
- Apparent magnitude (H): 4.698
- Spectral class: M6
VY Canis Majoris: Star Type, Size, Location, Constellation - Star Facts
2023年2月28日 · VY Canis Majoris (VY CMa) is a red supergiant or hypergiant star located 3,820 light-years away in the constellation Canis Major. It is one of the largest stars known, with an …
Hypergiants: the Most Massive Stars in the Universe
2018年10月1日 · The largest is more than 265 times its mass, and incredibly bright. Their brightness and other characteristics led astronomers to give these bloated stars a new classification: hypergiant. They are essentially …
Red supergiant - Wikipedia
Higher-mass stars never cool sufficiently to become red supergiants. Lower-mass stars develop a degenerate helium core during a red giant phase, undergo a helium flash before fusing helium …
VY Canis Majoris – Features and Facts - The Planets
VY Canis Majoris, often abbreviated to VY CMa, is an extremely large red hypergiant (RHG) or red supergiant (RSG) located in the constellation Canis Major. It is one of the largest known stars, is one of the most luminous and …
Red Supergiants are the Largest Stars in the Universe
2020年1月10日 · The very largest stars in our galaxy, all red supergiants, are about 1,500 times the size of our home star. Because of their immense size and mass, these stars require an incredible amount of energy to sustain them and …
VY Canis Majoris mass-loss history sheds light on …
2021年4月15日 · In the southern hemisphere, in the constellation Canis Major, lies a very young, very massive red hypergiant star called VY Canis Majoris (VY CMa). A pulsating variable, its apparent...
